Prof. Dr. rer. nat. Uli Lemmer

Institutsleitung
Leitung der Abteilung Optoelektronik
Raum: 222
Tel.: +49 721 608-42530
Fax: +49 721 608-42590
uli lemmer ∂does-not-exist.kit edu

Engesserstrasse 13, Geb. 30.34
76131 Karlsruhe

Aktuelle Veranstaltungen
Titel	Typ
Übungen zu 2313726 Optoelektronik	Übung (Ü)
Lichttechnisches Kolloquium und Seminar	Kolloquium (KOL)
Praktikum Matlab zur Modellierung im Bereich Optoelektronik	Praktikum (P)
Praktikum Nanotechnologie	Praktikum (P)
Sprechstunde Prof. Lemmer	Sprechstunde (Sprechst.)
Optoelektronik	Vorlesung (V)
Polymerelektronik/ Plastic Electronics	Vorlesung (V)

Weitere Aufgaben

Laserschutzbeauftragter des LTI
Modellberater des Studienmodells 18 "Regenerative Energien"

Lebenslauf und Veröffentlichungen

Uli Lemmer received the diploma degree in physics from RWTH Aachen University in 1990 and a Ph.D. from the University of Marburg in 1995. From 1995 to 1996, he held a postdoctoral position with the University of California at Santa Barbara. He was with the University of Munich from 1996 to 2002. In 2002, he was appointed a full Professor and director of the Light Technology Institute, Karlsruhe Institute of Technology (KIT). Since 2006 he is also the coordinator of the Karlsruhe School of Optics & Photonics (KSOP) and he is also heading the device physics competence center within the InnovationLab in Heidelberg. His research interests are in the technology and the applications of printable organic and inorganic semiconductors.

- Gesamtliste aller Veröffentlichungen

Publikationen

2023

Bulk Incorporation with 4‐Methylphenethylammonium Chloride for Efficient and Stable Methylammonium‐Free Perovskite and Perovskite‐Silicon Tandem Solar Cells
Duong, T.; Nguyen, T.; Huang, K.; Pham, H.; Adhikari, S. G.; Khan, M. R.; Duan, L.; Liang, W.; Fong, K. C.; Shen, H.; Bui, A. D.; Mayon, A. O.; Truong, T.; Tabi, G.; Ahmad, V.; Surve, S.; Tong, J.; Kho, T.; Tran-Phu, T.; Lu, T.; Zheng, J.; Paetzold, U. W.; Lemmer, U.; Baillie, A. H.; Liu, Y.; Andersson, G.; White, T.; Weber, K.; Catchpole, K.
2023. Advanced Energy Materials, Art.-Nr.: 2203607. doi:10.1002/aenm.202203607

2022

Fabrication of patterned, flexible and large-scale Bragg mirrors by inkjet printing
Zhang, Q.; Jin, Q.; Mertens, A.; Huber, R.; Fessler, J.; Hernandez-Sosa, G.; Lemmer, U.
2022. W. Park, A.-J. Attias & B. Panchapakesan (Hrsg.), Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XIX, 7, SPIE. doi:10.1117/12.2633359

Fully printed high-density temperature sensor array (Conference Presentation)
Huber, R.; Mescher, H.; Gramlich, G.; Zhang, Q.; Hernandez-Sosa, G.; Lemmer, U.
2022. R. Shinar, I. Kymissis & E. J. List-Kratochvil (Hrsg.), Organic and Hybrid Sensors and Bioelectronics XV, 18, SPIE. doi:10.1117/12.2633363

Inorganic‐based printed thermoelectric materials and devices
Sarbajna, A.; Rösch, A. G.; Franke, L.; Lemmer, U.; Mallick, M. M.
2022. Advanced Engineering Materials. doi:10.1002/adem.202200980

Printed temperature sensor array for high-resolution thermal mapping
Bücher, T.; Huber, R.; Eschenbaum, C.; Mertens, A.; Lemmer, U.; Amrouch, H.
2022. Scientific Reports, 12 (1), 14231. doi:10.1038/s41598-022-18321-6

Fabrication of Microlens Arrays with High Quality and High Fill Factor by Inkjet Printing
Zhang, Q.; Schambach, M.; Schlisske, S.; Jin, Q.; Mertens, A.; Rainer, C.; Hernandez-Sosa, G.; Heizmann, M.; Lemmer, U.
2022. Advanced Optical Materials, 10 (14), Article no: 2200677. doi:10.1002/adom.202200677

A Self‐Assembly Method for Tunable and Scalable Nano‐Stamps: A Versatile Approach for Imprinting Nanostructures
Donie, Y. J.; Yuan, Y.; Allegro, I.; Schackmar, F.; Hossain, I. M.; Huber, R.; Roger, J.; Paetzold, U. W.; Gomard, G.; Lemmer, U.
2022. Advanced materials technologies, 7 (6), Art.Nr.: 2101008. doi:10.1002/admt.202101008

Fully Printed High-Density Temperature Sensor Array
Huber, R.; Willig, C.; Lemmer, U.
2022, Mai 11. MRS Spring Meeting and Exhibit (2022), Online, 23.–25. Mai 2022

Aerosol Jet Printed Microstrip Lines on Polyimide for D-Band
Gramlich, G.; Hebeler, J.; Bohn, C.; Lemmer, U.; Zwick, T.
2022. 2021 51st European Microwave Conference (EuMC): 4–6 April 2022, London, UK, 551–554, Institute of Electrical and Electronics Engineers (IEEE). doi:10.23919/EuMC50147.2022.9784303

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu2−δSe Printed Thermoelectric Films in Less Than 10 ms [in press]
Mallick, M. M.; Franke, L.; Rösch, A. G.; Geßwein, H.; Eggeler, Y. M.; Lemmer, U.
2022. ACS Omega, 7 (12), 10695–10700. doi:10.1021/acsomega.2c00412

Ultra-flexible β-Cu2-δSe-based p-type printed thermoelectric films
Mallick, M. M.; Sarbajna, A.; Rösch, A. G.; Franke, L.; Geßwein, H.; Eggeler, Y. M.; Lemmer, U.
2022. Applied materials today, 26, Art.Nr. 101269. doi:10.1016/j.apmt.2021.101269

Nanoporous Polymer Reflectors for Organic Solar Cells
Yu, S.; Guo, B.; Johnsen, S.; Wiegand, G.; Lemmer, U.; Guo, X.; Zhang, M.; Li, Y.; Sprau, C.; Hölscher, H.; Colsmann, A.; Gomard, G.
2022. Energy technology, 10 (2), Art.-Nr. 2100676. doi:10.1002/ente.202100676

Fully Printed Temperature Sensor Array Comprising 625 60×60 µm $^{2}$ pixels
Huber, R.; Eizaguirre, S.; Mescher, H.; Willig, C.; Zhang, Q.; Lemmer, U.
2022. Advanced Sensor Research, Art.-Nr.: 2200031. doi:10.1002/adsr.202200031

Aerosol Jet Printed Millimeter Wave Interconnects in D-Band
Gramlich, G.; Huber, R.; Lemmer, U.; Zwick, T.
2022. 2022 52nd European Microwave Conference (EuMC), 298–301, Institute of Electrical and Electronics Engineers (IEEE). doi:10.23919/EuMC54642.2022.9924311

In Situ Process Monitoring and Multichannel Imaging for Vacuum‐Assisted Growth Control of Inkjet‐Printed and Blade‐Coated Perovskite Thin‐Films
Schackmar, F.; Laufer, F.; Singh, R.; Farag, A.; Eggers, H.; Gharibzadeh, S.; Abdollahi Nejand, B.; Lemmer, U.; Hernandez-Sosa, G.; Paetzold, U. W.
2022. Advanced Materials Technologies, Art.-Nr.: 2201331. doi:10.1002/admt.202201331

High Figure‐of‐Merit Telluride‐Based Flexible Thermoelectric Films through Interfacial Modification via Millisecond Photonic‐Curing for Fully Printed Thermoelectric Generators
Mallick, M. M.; Franke, L.; Rösch, A. G.; Geßwein, H.; Long, Z.; Eggeler, Y. M.; Lemmer, U.
2022. Advanced Science, 9 (31), Art.Nr.: 2202411. doi:10.1002/advs.202202411

Scalable two-terminal all-perovskite tandem solar modules with a 19.1% efficiency
Abdollahi Nejand, B.; Ritzer, D. B.; Hu, H.; Schackmar, F.; Moghadamzadeh, S.; Feeney, T.; Singh, R.; Laufer, F.; Schmager, R.; Azmi, R.; Kaiser, M.; Abzieher, T.; Gharibzadeh, S.; Ahlswede, E.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2022. Nature Energy, 7, 620–630. doi:10.1038/s41560-022-01059-w

Fabrication of Bragg Mirrors by Multilayer Inkjet Printing
Zhang, Q.; Jin, Q.; Mertens, A.; Rainer, C.; Huber, R.; Fessler, J.; Hernandez-Sosa, G.; Lemmer, U.
2022. Advanced Materials, Article no: 2201348. doi:10.1002/adma.202201348

Lasing from Laminated Quasi‐2D/3D Perovskite Planar Heterostructures
Li, Y.; Roger, J.; Allegro, I.; Fischer, J. C.; Jin, Q.; Lemmer, U.; Howard, I. A.; Paetzold, U. W.
2022. Advanced Functional Materials, 32 (27), Artkl.Nr.: 2200772. doi:10.1002/adfm.202200772

Polarization-Sensitive Photodetectors Based on Directionally Oriented Organic Bulk-Heterojunctions
Perevedentsev, A.; Mejri, H.; Ruiz-Preciado, L. A.; Marszalek, T.; Lemmer, U.; Blom, P. W. M.; Hernandez-Sosa, G.
2022. Advanced Optical Materials, 10 (7), Art.-Nr.: 2102397. doi:10.1002/adom.202102397

SiC-based Resonant Converters with ZVS Operated in MHz Range Driving Rapidly Variable Loads: Inductively Coupled Plasmas as a Case of Study
Eizaguirre Cabrera, S.; Gehring, T.; Denk, F.; Jin, Q.; Dycke, J.; Renschler, M.; Hiller, M.; Lemmer, U.; Kling, R.
2022. IEEE transactions on power electronics, 37 (7), 7775–7788. doi:10.1109/TPEL.2022.3147947

Emergence of Deep Traps in Long-Term Thermally Stressed CH₃NH₃PbI₃ Perovskite Revealed by Thermally Stimulated Currents
Khan, M. R.; Schwenzer, J. A.; Lehr, J.; Paetzold, U. W.; Lemmer, U.
2022. The journal of physical chemistry letters, 13 (2), 552–558. doi:10.1021/acs.jpclett.1c03522

Silver-Nanoparticle-Based Metallodielectric Wavelength-Selective Reflectors for Quantum-Dot-Enhanced White-Light-Emitting Diodes
Chen, J.; Theobald, D.; Shams, A. B.; Jin, Q.; Mertens, A.; Gomard, G.; Lemmer, U.
2022. ACS applied nano materials, 5 (1), 87–93. doi:10.1021/acsanm.1c02885

2021

Realizing High Thermoelectric Performance of Bi-Sb-Te-Based Printed Films through Grain Interface Modification by an In Situ-Grown β-Cu2-δSe Phase
Mallick, M. M.; Franke, L.; Rösch, A. G.; Ahmad, S.; Geßwein, H.; Eggeler, Y. M.; Rohde, M.; Lemmer, U.
2021. ACS applied materials & interfaces, 13 (51), 61386–61395. doi:10.1021/acsami.1c13526

Fully printed origami thermoelectric generators for energy-harvesting
Rösch, A. G.; Gall, A.; Aslan, S.; Hecht, M.; Franke, L.; Mallick, M. M.; Penth, L.; Bahro, D.; Friderich, D.; Lemmer, U.
2021. npj flexible electronics, 5 (1), Article: 1. doi:10.1038/s41528-020-00098-1

Inkjet-Printed Tin Oxide Hole-Blocking Layers for Organic Photodiodes
Krebsbach, P.; Schlisske, S.; Strobel, N.; Seiberlich, M.; Ruiz-Preciado, L. A.; Rainer, C.; Huang, X.; Lemmer, U.; Hernandez-Sosa, G.
2021. ACS applied electronic materials, 3 (11), 4959–4966. doi:10.1021/acsaelm.1c00760

Two birds with one stone: dual grain-boundary and interface passivation enables >22% efficient inverted methylammonium-free perovskite solar cells
Gharibzadeh, S.; Fassl, P.; Hossain, I. M.; Rohrbeck, P.; Frericks, M.; Schmidt, M.; Duong, T.; Khan, M. R.; Abzieher, T.; Nejand, B. A.; Schackmar, F.; Almora, O.; Feeney, T.; Singh, R.; Fuchs, D.; Lemmer, U.; Hofmann, J. P.; Weber, S. A. L.; Paetzold, U. W.
2021. Energy & environmental science, 14 (11), 5875–5893. doi:10.1039/D1EE01508G

Annual energy yield of mono- and bifacial silicon heterojunction solar modules with high-index dielectric nanodisk arrays as anti-reflective and light trapping structures
Slivina, E.; Bätzner, D.; Schmager, R.; Langenhorst, M.; Lehr, J.; Paetzold, U. W.; Lemmer, U.; Rockstuhl, C.
2021. Optics express, 29 (21), 34494–34509. doi:10.1364/OE.435004

In $_{2}$ O $_{3}$ :H-Based Hole-Transport-Layer-Free Tin/Lead Perovskite Solar Cells for Efficient Four-Terminal All-Perovskite Tandem Solar Cells
Moghadamzadeh, S.; Hossain, I. M.; Loy, M.; Ritzer, D. B.; Hu, H.; Hauschild, D.; Mertens, A.; Becker, J.-P.; Haghighirad, A. A.; Ahlswede, E.; Weinhardt, L.; Lemmer, U.; Nejand, B. A.; Paetzold, U. W.
2021. ACS applied materials & interfaces, 13 (39), 46488–46498. doi:10.1021/acsami.1c06457

Pixelated Smart Window for High Dynamic Range Signage Displaying Applications
Jin, Q.; Zhang, Q.; Chen, J.; Gehring, T.; Eizaguirre Cabrera, S.; Huber, R.; Gomard, G.; Lemmer, U.; Kling, R.
2021, Oktober. 6th Smart Materials and Surfaces (SMS 2021), Mailand, Italien, 20.–22. Oktober 2021

Simulation of light scattering in large, disordered nanostructures using a periodic T-matrix method
Theobald, D.; Beutel, D.; Borgmann, L.; Mescher, H.; Gomard, G.; Rockstuhl, C.; Lemmer, U.
2021. Journal of quantitative spectroscopy & radiative transfer, 272, Article no: 107802. doi:10.1016/j.jqsrt.2021.107802

Photodegradation of Triple-Cation Perovskite Solar Cells: The Role of Spectrum and Bias Conditions
Farooq, A.; Khan, M. R.; Abzieher, T.; Voigt, A.; Lupascu, D. C.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2021. ACS applied energy materials, 4 (4), 3083–3092. doi:10.1021/acsaem.0c02813

An enantioselective e‐nose: An array of nanoporous homochiral MOF films for stereospecific sensing of chiral odors
Okur, S.; Qin, P.; Chandresh, A.; Li, C.; Zhang, Z.; Lemmer, U.; Heinke, L.
2021. Angewandte Chemie / International edition, 60 (7), 3566–3571. doi:10.1002/anie.202013227

Identification of Mint Scents Using a QCM Based E-Nose
Okur, S.; Sarheed, M.; Huber, R.; Zhang, Z.; Heinke, L.; Kanbar, A.; Wöll, C.; Nick, P.; Lemmer, U.
2021. Chemosensors, 9 (2), Art.-Nr. 31. doi:10.3390/chemosensors9020031

Perovskite Solar Cells with All-Inkjet-Printed Absorber and Charge Transport Layers
Schackmar, F.; Eggers, H.; Frericks, M.; Richards, B. S.; Lemmer, U.; Hernandez-Sosa, G.; Paetzold, U. W.
2021. Advanced materials technologies, 6 (2), Art.Nr. 2000271. doi:10.1002/admt.202000271

Ink Formulation for Printed Organic Electronics: Investigating Effects of Aggregation on Structure and Rheology of Functional Inks Based on Conjugated Polymers in Mixed Solvents
Schlisske, S.; Rosenauer, C.; Rödlmeier, T.; Giringer, K.; Michels, J. J.; Kremer, K.; Lemmer, U.; Morsbach, S.; Daoulas, K. C.; Hernandez-Sosa, G.
2021. Advanced materials technologies, 6 (2), Art.Nr. 2000335. doi:10.1002/admt.202000335

Surface energy patterning for ink-independent process optimization of inkjet-printed electronics
Schlisske, S.; Raths, S.; Ruiz-Preciado, L. A.; Lemmer, U.; Exner, K.; Hernandez-Sosa, G.
2021. Flexible and printed electronics, 6, Article no: 015002. doi:10.1088/2058-8585/abcc79

Optimization of SnO $_{2}$ electron transport layer for efficient planar perovskite solar cells with very low hysteresis†
Eliwi, A. A.; Malekshahi Byranvand, M.; Fassl, P.; Khan, M. R.; Hossain, I. M.; Frericks, M.; Ternes, S.; Abzieher, T.; Schwenzer, J. A.; Mayer, T.; Hofmann, J. P.; Richards, B. S.; Lemmer, U.; Saliba, M.; Paetzold, U. W.
2021. Materials advances, 3 (1), 456–466. doi:10.1039/d1ma00585e

High Dynamic Range Smart Window Display by Surface Hydrophilization and Inkjet Printing
Jin, Q.; Zhang, Q.; Chen, J.; Gehring, T.; Eizaguirre, S.; Huber, R.; Gomard, G.; Lemmer, U.; Kling, R.
2021. Advanced materials technologies, 5 (7), Art.-Nr.: 2101026. doi:10.1002/admt.202101026

Sniff Species: SURMOF-Based Sensor Array Discriminates Aromatic Plants beyond the Genus Level
Okur, S.; Li, C.; Zhang, Z.; Pratap, S. V.; Sarheed, M.; Kanbar, A.; Franke, L.; Geislhöringer, F.; Heinke, L.; Lemmer, U.; Nick, P.; Wöll, C.
2021. Chemosensors, 9 (7), Art.-Nr. 171. doi:10.3390/chemosensors9070171

Gold nanoplasmonic particles in tunable porous silicon 3D scaffolds for ultra-low concentration detection by SERS
Wu, R.; Jin, Q.; Storey, C. J.; Collins, J.; Gomard, G.; Lemmer, U.; Canham, L. T.; Kling, R.; Kaplan, A.
2021. Nanoscale horizons, 6 (10), 781–790. doi:10.1039/D1NH00228G

Exciton versus free carrier emission: Implications for photoluminescence efficiency and amplified spontaneous emission thresholds in quasi-2D and 3D perovskites
Li, Y.; Allegro, I.; Kaiser, M.; Malla, A. J.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.; Howard, I. A.
2021. Materials Today, 49, 35–47. doi:10.1016/j.mattod.2021.05.002

Improved Electrical, Thermal, and Thermoelectric Properties Through Sample‐to‐Sample Fluctuations in Near‐Percolation Threshold Composite Materials
Rösch, A. G.; Giunta, F.; Mallick, M. M.; Franke, L.; Gall, A.; Aghassi-Hagmann, J.; Schmalian, J.; Lemmer, U.
2021. Advanced theory and simulations, 4 (6), Art.-Nr.: 2000284. doi:10.1002/adts.202000284

Phase-Separated Nanophotonic Structures by Inkjet Printing
Donie, Y. J.; Schlisske, S.; Siddique, R. H.; Mertens, A.; Narasimhan, V.; Schackmar, F.; Pietsch, M.; Hossain, I. M.; Hernandez-Sosa, G.; Lemmer, U.; Gomard, G.
2021. ACS nano, 15 (4), 7305–7317. doi:10.1021/acsnano.1c00552

Automated quality assessment of inkjet-printed microlens arrays Automatische Bewertung Inkjet-gedruckter Mikrolinsenarrays
Schambach, M.; Zhang, Q.; Lemmer, U.; Heizmann, M.
2021. Technisches Messen, 88 (6), 342–351. doi:10.1515/teme-2021-0019

Thermal Stability and Cation Composition of Hybrid Organic–Inorganic Perovskites
Schwenzer, J. A.; Hellmann, T.; Nejand, B. A.; Hu, H.; Abzieher, T.; Schackmar, F.; Hossain, I. M.; Fassl, P.; Mayer, T.; Jaegermann, W.; Lemmer, U.; Paetzold, U. W.
2021. ACS applied materials & interfaces, 13 (13), 15292–15304. doi:10.1021/acsami.1c01547

Anisotropic optical behavior of an amorphous organic polymer locally aligned by inkjet-printing
Lindberg, F. W.; Synnatschke, K.; Rödlmeier, T.; Brenner, P.; Krings, M.; Dietl, M. C.; Lemmer, U.; Backes, C.; Hernandez-Sosa, G.
2021. Progress in Organic Coatings, 154, Art.-Nr.: 106184. doi:10.1016/j.porgcoat.2021.106184

Bimolecular and Auger Recombination in Phase-Stable Perovskite Thin Films from Cryogenic to Room Temperature and Their Effect on the Amplified Spontaneous Emission Threshold
Allegro, I.; Li, Y.; Richards, B. S.; Paetzold, U. W.; Lemmer, U.; Howard, I. A.
2021. The journal of physical chemistry letters, 12 (9), 2293–2298. doi:10.1021/acs.jpclett.1c00099

Aerosol‐Jet‐Printed Donor‐Blocking Layer for Organic Photodiodes
Seiberlich, M.; Strobel, N.; Ruiz-Preciado, L. A.; Ruscello, M.; Lemmer, U.; Hernandez-Sosa, G.
2021. Advanced electronic materials, 7 (1), Art.Nr. 2000811. doi:10.1002/aelm.202000811

Shape-Versatile 3D Thermoelectric Generators by Additive Manufacturing
Mallick, M. M.; Franke, L.; Rösch, A. G.; Lemmer, U.
2021. ACS energy letters, 6, 85–91. doi:10.1021/acsenergylett.0c02159

2020

Tuning Optical Properties by Controlled Aggregation: Electroluminescence Assisted by Thermally‐Activated Delayed Fluorescence from Thin Films of Crystalline Chromophores
Wöll, C.; Haldar, R.; Jakoby, M.; Kozlowska, M.; Khan, M. R.; Chen, H.; Pramudya, Y.; Richards, B. S.; Heinke, L.; Wenzel, W.; Odobel, F.; Diring, S.; Howard, I. A.; Lemmer, U.
2020. Chemistry - a European journal, 26 (71), 17016–17020. doi:10.1002/chem.202003712

Numerical study on the angular light trapping of the energy yield of organic solar cells with an optical cavity
Lehr, J.; Mertens, A.; Liu, Q.; Martorell, J.; Paetzold, U. W.; Lemmer, U.
2020. Optics express, 28 (25), 37986–37995. doi:10.1364/OE.404969

Planarized and Compact Light Scattering Layers Based on Disordered Titania Nanopillars for Light Extraction in Organic Light Emitting Diodes
Donie, Y. J.; Theobald, D.; Moghadamzadeh, S.; Mertens, A.; Hossain, I. M.; Paetzold, U. W.; Lemmer, U.; Gomard, G.
2020. Advanced optical materials, 9 (14), Art.-Nr.: 2001610. doi:10.1002/adom.202001610

Automated Quantitative Quality Assessment of Printed Microlens Arrays
Schambach, M.; Zhang, Q.; Lemmer, U.; Heizmann, M.
2020. Forum Bildverarbeitung 2020 Längle, Thomas [Hrsg.]; Heizmann, Michael [Hrsg.], 51–63, KIT Scientific Publishing

Inkjet-printed triple cation perovskite absorbers for mechanically flexible high performance X-ray detectors
Mescher, H.; Schackmar, F.; Eggers, H.; Abzieher, T.; Zuber, M.; Hamann, E.; Baumbach, T.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.; Lemmer, U.
2020. M. Fiederle, A. Burger & S. A. Payne (Hrsg.), Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII : 24 August-4 September 2020, online only, United States / Arnold Burger, Stephen A. Payne, Michael Fiederle, 9, SPIE. doi:10.1117/12.2568063

Design of Selective Reflectors Utilizing Multiple Scattering by Core–Shell Nanoparticles for Color Conversion Films
Theobald, D.; Yu, S.; Gomard, G.; Lemmer, U.
2020. ACS photonics, 7 (6), 1452–1460. doi:10.1021/acsphotonics.0c00117

2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS
Gharibzadeh, S.; Hossain, I. M.; Fassl, P.; Nejand, B. A.; Abzieher, T.; Schultes, M.; Ahlswede, E.; Jackson, P.; Powalla, M.; Schäfer, S.; Rienäcker, M.; Wietler, T.; Peibst, R.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2020. Advanced functional materials, 30 (19), Art. Nr.: 1909919. doi:10.1002/adfm.201909919

Energy yield of bifacial textured perovskite/silicon tandem photovoltaic modules
Lehr, J.; Langenhorst, M.; Schmager, R.; Gota, F.; Kirner, S.; Lemmer, U.; Richards, B. S.; Case, C.; Paetzold, U. W.
2020. Solar energy materials & solar cells, 208, 110367. doi:10.1016/j.solmat.2019.110367

High-Performance Ag–Se-Based n-Type Printed Thermoelectric Materials for High Power Density Folded Generators
Mallick, M. M.; Rösch, A. G.; Franke, L.; Ahmed, S.; Gall, A.; Geßwein, H.; Aghassi, J.; Lemmer, U.
2020. ACS applied materials & interfaces, 12 (17), 19655–19663. doi:10.1021/acsami.0c01676

Flexible Inkjet-Printed Triple Cation Perovskite X-ray Detectors
Mescher, H.; Schackmar, F.; Eggers, H.; Abzieher, T.; Zuber, M.; Hamann, E.; Baumbach, T.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.; Lemmer, U.
2020. ACS applied materials & interfaces, 12 (13), 15774–15784. doi:10.1021/acsami.9b14649

Low-Temperature Electroluminescence Excitation Mapping of Excitons and Trions in Short-Channel Monochiral Carbon Nanotube Devices
Gaulke, M.; Janissek, A.; Peyyety, N. A.; Alamgir, I.; Riaz, A.; Dehm, S.; Li, H.; Lemmer, U.; Flavel, B. S.; Kappes, M. M.; Hennrich, F.; Wei, L.; Chen, Y.; Pyatkov, F.; Krupke, R.
2020. ACS nano, 14 (3), 2709–2717. doi:10.1021/acsnano.9b07207

Nanostructured front electrodes for perovskite/c-Si tandem photovoltaics
Hossain, I. M.; Donie, Y. J.; Schmager, R.; Abdelkhalik, M. S.; Rienäcker, M.; Wietler, T. F.; Peibst, R.; Karabanov, A.; Schwenzer, J. A.; Moghadamzadeh, S.; Lemmer, U.; Richards, B. S.; Gomard, G.; Paetzold, U. W.
2020. Optics express, 28 (6), 8878–8897. doi:10.1364/OE.382253

Inkjet‐Printed Micrometer‐Thick Perovskite Solar Cells with Large Columnar Grains
Eggers, H.; Schackmar, F.; Abzieher, T.; Sun, Q.; Lemmer, U.; Vaynzof, Y.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.
2020. Advanced energy materials, 10 (6), Art. Nr.: 1903184. doi:10.1002/aenm.201903184

Spontaneous Enhancement of the Power Output in Surface-Passivated Triple-Cation Perovskite Solar Cells
Moghadamzadeh, S.; Gharibzadeh, S.; Jakoby, M.; Khan, M. R.; Haghighirad, A. A.; Howard, I. A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2020. 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 15 June - 21 August 2020, online, 1217–1219, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC45281.2020.9300632

Emission dynamics of conjugated oligomer (BECV-DHF)/quantum dot perovskite composites in solutions
Aljaafreh, M. J.; Prasad, S.; AlSalhi, M. S.; Lemmer, U.; Alahmed, Z. A.; Baloch, M. A.
2020. Colloids and surfaces / A, 610, Art.-Nr.: 125911. doi:10.1016/j.colsurfa.2020.125911

Bioreplicated coatings for photovoltaic solar panels nearly eliminate light pollution that harms polarotactic insects
Fritz, B.; Horváth, G.; Hünig, R.; Pereszlényi, Á.; Egri, Á.; Guttmann, M.; Schneider, M.; Lemmer, U.; Kriska, G.; Gomard, G.
2020. (O. Ostroverkhova, Hrsg.) PLOS ONE, 15 (12), Art.-Nr. e0243296. doi:10.1371/journal.pone.0243296

Triple-cation low-bandgap perovskite thin-films for high-efficiency four-terminal all-perovskite tandem solar cells
Moghadamzadeh, S.; Hossain, I. M.; Duong, T.; Gharibzadeh, S.; Abzieher, T.; Pham, H.; Hu, H.; Fassl, P.; Lemmer, U.; Nejand, B. A.; Paetzold, U. W.
2020. Journal of materials chemistry / A, 8 (46), 24608–24619. doi:10.1039/D0TA07005J

Progress on Perovskite Solar Cells with All-Inkjet-Printed Absorber and Extraction Layers
Eggers, H.; Schackmar, F.; Abzieher, T.; Sun, Q.; Vaynzof, Y.; Lemmer, U.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.
2020. Optical Devices and Materials for Solar Energy and Solid-state Lighting 2020, Washington, DC United States, 13–16 July 2020, Optica Publishing Group (OSA)

Impact study of windshield geometry on the subjective customer perception for augmented reality head-up displays (Ar hud)
Wagner, D.; Schneider, M.; Dross, F.; Langer, S.; Zeidler, S.; Ganz, T.; Lemmer, U.
2020. Digest of technical papers, 51 (1), 254–257. doi:10.1002/sdtp.13852

New frontier in printed thermoelectrics: Formation of β-Ag $_{2}$ Se through thermally stimulated dissociative adsorption leads to high ZT
Mallick, M. M.; Rösch, A. G.; Franke, L.; Gall, A.; Ahmad, S.; Gesswein, H.; Mazilkin, A.; Kuebel, C.; Lemmer, U.
2020. Journal of materials chemistry / A, 8 (32), 16366–16375. doi:10.1039/D0TA05859A

Horsefly reactions to black surfaces: attractiveness to male and female tabanids versus surface tilt angle and temperature
Horváth, G.; Pereszlényi, Á.; Egri, Á.; Fritz, B.; Guttmann, M.; Lemmer, U.; Gomard, G.; Kriska, G.
2020. Parasitology research, 119, 2399–2409. doi:10.1007/s00436-020-06702-7

Toward Stable Perovskite Solar Cell Architectures: Robustness against Temperature Variations of Real-World Conditions
Schwenzer, J. A.; Rakocevic, L.; Abzieher, T.; Rueda-Delgado, D.; Moghadamzadeh, S.; Gharibzadeh, S.; Hossain, I. M.; Gehlhaar, R.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2020. IEEE journal of photovoltaics, 10 (3), 777–784. doi:10.1109/JPHOTOV.2020.2969785

Sensitizing TADF Absorption Using Variable Length Oligo(phenylene ethynylene) Antennae
Franco, O.; Jakoby, M.; Schneider, R. V.; Hundemer, F.; Hahn, D.; Richards, B. S.; Bräse, S.; Meier, M. A. R.; Lemmer, U.; Howard, I. A.
2020. Frontiers in Chemistry, 8, Art.-Nr.: 126. doi:10.3389/fchem.2020.00126

Upscaling the fabrication routine of bioreplicated rose petal light harvesting layers for photovoltaic modules
Fritz, B.; Hünig, R.; Guttmann, M.; Schneider, M.; Reza, K. M. S.; Salomon, O.; Jackson, P.; Powalla, M.; Lemmer, U.; Gomard, G.
2020. Solar energy, 201, 666–673. doi:10.1016/j.solener.2020.03.020

Color‐Selective Printed Organic Photodiodes for Filterless Multichannel Visible Light Communication
Strobel, N.; Droseros, N.; Köntges, W.; Seiberlich, M.; Pietsch, M.; Schlisske, S.; Lindheimer, F.; Schröder, R. R.; Lemmer, U.; Pfannmöller, M.; Banerji, N.; Hernandez-Sosa, G.
2020. Advanced materials, 32 (12), Art. Nr.: 1908258. doi:10.1002/adma.201908258

High Efficiency Perovskite‐Silicon Tandem Solar Cells: Effect of Surface Coating versus Bulk Incorporation of 2D Perovskite
Duong, T.; Pham, H.; Kho, T. C.; Phang, P.; Fong, K. C.; Yan, D.; Yin, Y.; Peng, J.; Mahmud, M. A.; Gharibzadeh, S.; Nejand, B. A.; Hossain, I. M.; Khan, M. R.; Mozaffari, N.; Wu, Y.; Shen, H.; Zheng, J.; Mai, H.; Liang, W.; Samundsett, C.; Stocks, M.; McIntosh, K.; Andersson, G. G.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.; Ho-Ballie, A.; Liu, Y.; Macdonald, D.; Blakers, A.; Wong-Leung, J.; White, T.; Weber, K.; Catchpole, K.
2020. Advanced energy materials, 10 (9), Art. Nr.: 1903553. doi:10.1002/aenm.201903553

High-brightness Perovskite Light-emitting Diodes Using a Printable Silver Microflake Contact
Payandeh, M.; Ahmadi, V.; Arabpour Roghabadi, F.; Nazari, P.; Ansari, F.; Brenner, P.; Baeuerle, R.; jakoby, marius; Lemmer, U.; Howard, I. A.; Richards, B. S.; Paetzold, U. W.; Abdollahi Nejand, B.
2020. ACS applied materials & interfaces, 12 (10), 11428–11437. doi:10.1021/acsami.9b18527

Highly Efficient and Water-Stable Lead Halide Perovskite Quantum Dots Using Superhydrophobic Aerogel Inorganic Matrix for White Light-Emitting Diodes
Li, Z.; Song, C.; Li, J.; Liang, G.; Rao, L.; Yu, S.; Ding, X.; Tang, Y.; Yu, B.; Ou, J.; Lemmer, U.; Gomard, G.
2020. Advanced materials technologies, 5 (2), Article: 1900941. doi:10.1002/admt.201900941

Solution-processed and evaporated C $_{60}$ interlayers for improved charge transport in perovskite photovoltaics
Rueda-Delgado, D.; Hossain, I. M.; Jakoby, M.; Schwenzer, J. A.; Abzieher, T.; Howard, I. A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2020. Organic electronics, 77, Article: 105526. doi:10.1016/j.orgel.2019.105526

Towards a MOF e-Nose: A SURMOF sensor array for detection and discrimination of plant oil scents and their mixtures
Okur, S.; Zhang, Z.; Sarheed, M.; Nick, P.; Lemmer, U.; Heinke, L.
2020. Sensors and actuators <Lausanne> / B, 306, Art.-Nr.: 127502. doi:10.1016/j.snb.2019.127502

Vacuum‐Assisted Growth of Low‐Bandgap Thin Films (FA $_{0.8}$ MA $_{0.2}$ Sn $_{0.5}$ Pb $_{0.5}$ I $_{3}$ ) for All‐Perovskite Tandem Solar Cells
Abdollahi Nejand, B.; Hossain, I. M.; Jakoby, M.; Moghadamzadeh, S.; Abzieher, T.; Gharibzadeh, S.; Schwenzer, J. A.; Nazari, P.; Schackmar, F.; Hauschild, D.; Weinhardt, L.; Lemmer, U.; Richards, B. S.; Howard, I. A.; Paetzold, U. W.
2020. Advanced energy materials, 10 (5), Article: 1902583. doi:10.1002/aenm.201902583

2019

Pyrolysis-induced shrinking of three-dimensional structures fabricated by two-photon polymerization: experiment and theoretical model
Cardenas-Benitez, B.; Eschenbaum, C.; Mager, D.; Korvink, J. G.; Madou, M. J.; Lemmer, U.; De Leon, I.; Martinez-Chapa, S. O.
2019. Microsystems & nanoengineering, 5 (1), 38–52. doi:10.1038/s41378-019-0079-9

Organic photodiodes: printing, coating, benchmarks, and applications
Strobel, N.; Seiberlich, M.; Eckstein, R.; Lemmer, U.; Hernandez Sosa, G.
2019. Flexible and printed electronics, 4 (4), Art.Nr. 043001. doi:10.1088/2058-8585/ab56dd

Comment on “Room-Temperature Continuous-Wave Operation of Organometal Halide Perovskite Lasers”
Brenner, P.; Paetzold, U. W.; Turnbull, G. A.; Giebink, N. C.; Samuel, I. D. W.; Lemmer, U.; Howard, I. A.
2019. ACS nano, 13 (11), 12257–12258. doi:10.1021/acsnano.9b00133

Enhanced color conversion of quantum dots - polymer hybrid films in light emitting diodes
Yu, S.; Fritz, B.; Theobald, D.; Wu, K.; Johnsen, S.; Busko, D.; Richards, B. S.; Wiegand, G.; Tang, Y.; Li, Z.; Lemmer, U.; Holscher, H.; Gomard, G.
2019. 20th International Conference on Electronic Packaging Technology (ICEPT 2019), 1–4, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICEPT47577.2019.245231

Coated and Printed Perovskites for Photovoltaic Applications
Howard, I. A.; Abzieher, T.; Hossain, I. M.; Eggers, H.; Schackmar, F.; Ternes, S.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2019. Advanced materials, 31 (26), Art.Nr. 1806702. doi:10.1002/adma.201806702

Enhanced Photoluminescence in Quantum Dots–Porous Polymer Hybrid Films Fabricated by Microcellular Foaming
Yu, S.; Fritz, B.; Johnsen, S.; Busko, D.; Richards, B. S.; Hippler, M.; Wiegand, G.; Tang, Y.; Li, Z.; Lemmer, U.; Hölscher, H.; Gomard, G.
2019. Advanced optical materials, 7 (12), Article no: 1900223. doi:10.1002/adom.201900223

Perovskite Solar Cells: Record Open‐Circuit Voltage Wide‐Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure
Gharibzadeh, S.; Abdollahi Nejand, B.; Jakoby, M.; Abzieher, T.; Hauschild, D.; Moghadamzadeh, S.; Schwenzer, J. A.; Brenner, P.; Schmager, R.; Haghighirad, A. A.; Weinhardt, L.; Lemmer, U.; Richards, B. S.; Howard, I. A.; Paetzold, U. W.
2019. Advanced energy materials, 9 (21), 1970079. doi:10.1002/aenm.201970079

Methodology of energy yield modelling of perovskite-based multi-junction photovoltaics
Schmager, R.; Langenhorst, M.; Lehr, J.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2019. Optics express, 27 (8), A507-A523. doi:10.1364/OE.27.00A507

Novel hybrid organic-inorganic perovskite detector designs based on multilayered device architectures: simulation and design
Mescher, H.; Lemmer, U.
2019. Medical Imaging 2019: Physics of Medical Imaging, San Diego, California, United States, 16-21 February 2019, 31, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2511739

Continuous wave amplified spontaneous emission in phase-stable lead halide perovskites
Brenner, P.; Bar-On, O.; Jakoby, M.; Allegro, I.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Scheuer, J.; Lemmer, U.
2019. Nature Communications, 10 (1), Article-Nr.: 988. doi:10.1038/s41467-019-08929-0

Microlens arrays with adjustable aspect ratio fabricated by electrowetting and their application to correlated color temperature tunable light-emitting diodes
Chen, J.; Fritz, B.; Liang, G.; Ding, X.; Lemmer, U.; Gomard, G.
2019. Optics express, 27 (4), A25-A38. doi:10.1364/OE.27.000A25

Foamed polymer/quantum dots composite films with enhanced photoluminescence efficiency
Yu, S.; Fritz, B.; Theobald, D.; Johnsen, S.; Busko, D.; Richards, B. S.; Hippler, M.; Wiegand, G.; Tang, Y.; Li, Z.; Lemmer, U.; Hölscher, H.; Gomard, G.
2019. Optical Devices and Materials for Solar Energy and Solid-State Lighting : part of OSA Advanced Photonics Congress, Burlingame, CA, July 29 - August 2, 2019. Part F136-PVLED 2019, Optica Publishing Group (OSA). doi:10.1364/PVLED.2019.PT2C.4

A comparison of printed flexible RFID/NFC antennas for a microelectronic measurement system
Le, V.; Moser, P.; Lemmer, U.; MacKensen, E.
2019. 2019 IEEE International Conference on RFID Technology and Applications (RFID-TA): 25-27 September 2019, Pisa, Italy, 49–54, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/RFID-TA.2019.8892040

Continuous wave amplified spontaneous emission in phase-stable triple cation lead halide perovskite thin films
Allegro, I.; Brenner, P.; Bar-On, O.; Jakoby, M.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Scheuer, J.; Lemmer, U.
2019. 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC): Munich, International Congress Centre (ICM), Germany, 23-27 June 2019, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CLEOE-EQEC.2019.8871688

Spontaneous Enhancement of the Stable Power Conversion Efficiency in Perovskite Solar Cells
Moghadamzadeh, S.; Hossain, I.; Jakoby, M.; Abdollahi Nejand, B.; Rueda-Delgado, D.; Schwenzer, J. A.; Gharibzadeh, S.; Abzieher, T.; Khan, M. R.; Haghighirad, A. A.; Howard, I. A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2019. Journal of materials chemistry / A, 8 (2), 670–682. doi:10.1039/C9TA09584E

Investigations of singlet and triplet diffusion in thermally activated delayed-fluorescence emitters: Implications for hyperfluorescence
Jakoby, M.; Richards, B. S.; Lemmer, U.; Howard, I. A.
2019. Physical review / B, 100 (4), Art. Nr.: 045303. doi:10.1103/PhysRevB.100.045303

Applications of tapered flat silver halide fibers chemically modified by 12-mercaptododecanoic acid NHS ester for infrared biospectroscopy with prospects for medical diagnostics
Delbeck, S.; Schmitz, B.; Nabers, A.; Gerwert, K.; Habermehl, A.; Lemmer, U.; Heise, H. M.
2019. Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX, San Fransisco, CA, February 2-3, 2019. Ed.: I. Gannot, 141 – 151, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2511023

Drying Dynamics of Solution‐Processed Perovskite Thin‐Film Photovoltaics: In Situ Characterization, Modeling, and Process Control
Ternes, S.; Börnhorst, T.; Schwenzer, J. A.; Hossain, I. M.; Abzieher, T.; Mehlmann, W.; Lemmer, U.; Scharfer, P.; Schabel, W.; Richards, B. S.; Paetzold, U. W.
2019. Advanced energy materials, 9 (39), Article no: 1901581. doi:10.1002/aenm.201901581

Efficient All-Evaporated pin-Perovskite Solar Cells: A Promising Approach Toward Industrial Large-Scale Fabrication
Abzieher, T.; Schwenzer, J. A.; Moghadamzadeh, S.; Sutterluti, F.; Hossain, I. M.; Pfau, M.; Lotter, E.; Hetterich, M.; Richards, B. S.; Lemmer, U.; Powalla, M.; Paetzold, U. W.
2019. IEEE journal of photovoltaics, 9 (5), 1249–1257. doi:10.1109/JPHOTOV.2019.2920727

Perovskite Micro Laser arrays using Scalable Lithography: Towards Integrated Perovskite Photonics
Bar-On, O.; Brenner, P.; Lemmer, U.; Scheuer, J.
2019. CLEO: Science and Innovations : part of CLEO: 2019 : 5-10 May 2019, San Jose, California, United States, SF2J.2, Optica Publishing Group (OSA). doi:10.1364/CLEO_SI.2019.SF2J.2

Continuous Wave Amplified Spontaneous Emission from Mixed Cation Perovskite devices
Brenner, P.; Bar-On, O.; Jakoby, M.; Allegro, I.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Scheuer, J.; Lemmer, U.
2019. Conference on Lasers and Electro-Optics, JTu2A.71, Optica Publishing Group (OSA). doi:10.1364/CLEO_AT.2019.JTu2A.71

Roll‐to‐Roll Hot Embossing of 1D and 2D Photonic Nanostructures
Habermehl, A.; Brenner, P.; Huber, R.; Mertens, A.; Winkler, F.; Hahn, L.; Guttmann, M.; Eschenbaum, C.; Lemmer, U.
2019. Advanced engineering materials, 21 (8), Article: 1900110. doi:10.1002/adem.201900110

Record Open‐Circuit Voltage Wide‐Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure
Gharibzadeh, S.; Abdollahi Nejand, B.; Jakoby, M.; Abzieher, T.; Hauschild, D.; Moghadamzadeh, S.; Schwenzer, J. A.; Brenner, P.; Schmager, R.; Haghighirad, A. A.; Weinhardt, L.; Lemmer, U.; Richards, B. S.; Howard, I. A.; Paetzold, U. W.
2019. Advanced energy materials, 9 (21), Article: 1803699. doi:10.1002/aenm.201803699

Comparative Study of Printed Multilayer OLED Fabrication through Slot Die Coating, Gravure and Inkjet Printing, and Their Combination
Merklein, L.; Daume, D.; Braig, F.; Schlisske, S.; Rödlmeier, T.; Mink, M.; Kourkoulos, D.; Ulber, B.; Di Biase, M.; Meerholz, K.; Hernandez-Sosa, G.; Lemmer, U.; Sauer, H.; Dörsam, E.; Scharfer, P.; Schabel, W.
2019. Colloids and interfaces, 3 (1), 32. doi:10.3390/colloids3010032

Simulation and design of folded perovskite x-ray detectors
Mescher, H.; Hamann, E.; Lemmer, U.
2019. Scientific reports, 9 (1), Article no: 5231. doi:10.1038/s41598-019-41440-6

Electron-Beam-Evaporated Nickel Oxide Hole Transport Layers for Perovskite-Based Photovoltaics
Abzieher, T.; Moghadamzadeh, S.; Schackmar, F.; Eggers, H.; Sutterlüti, F.; Farooq, A.; Kojda, D.; Habicht, K.; Schmager, R.; Mertens, A.; Azmi, R.; Klohr, L.; Schwenzer, J. A.; Hetterich, M.; Lemmer, U.; Richards, B. S.; Powalla, M.; Paetzold, U. W.
2019. Advanced energy materials, 9 (12), Article no 1802995. doi:10.1002/aenm.201802995

Scalable Processing of Low-Temperature TiO₂ Nanoparticles for High-Efficiency Perovskite Solar Cells
Hossain, I. M.; Hudry, D.; Mathies, F.; Abzieher, T.; Moghadamzadeh, S.; Rueda-Delgado, D.; Schackmar, F.; Bruns, M.; Andriessen, R.; Aernouts, T.; Di Giacomo, F.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.; Hadipour, A.
2019. ACS applied energy materials, 2 (1), 47–58. doi:10.1021/acsaem.8b01567

2018

Non-Fullerene-Based Printed Organic Photodiodes with High Responsivity and Megahertz Detection Speed
Strobel, N.; Seiberlich, M.; Rödlmeier, T.; Lemmer, U.; Hernandez-Sosa, G.
2018. ACS applied materials & interfaces, 10 (49), 42733–42739. doi:10.1021/acsami.8b16018

Sequence-definition in stiff conjugated oligomers
Schneider, R. V.; Waibel, K. A.; Arndt, A. P.; Lang, M.; Seim, R.; Busko, D.; Bräse, S.; Lemmer, U.; Meier, M. A. R.
2018. Scientific reports, 8 (1), Article number:17483. doi:10.1038/s41598-018-35933-z

High Quality 3D Photonics using Nano Imprint Lithography of Fast Sol-gel Materials
Bar-On, O.; Brenner, P.; Siegle, T.; Gvishi, R.; Kalt, H.; Lemmer, U.; Scheuer, J.
2018. Scientific reports, 8 (1), Art.Nr.:7833. doi:10.1038/s41598-018-26261-3

Comparing roll-to-roll and laser-assisted hot embossing for micro- and nanofabrication
Habermehl, A.; Rakebrandt, J.-H.; Brenner, P.; Huber, R.; Mertens, A.; Guttmann, M.; Winkler, F.; Pfleging, W.; Eschenbaum, C.; Lemmer, U.
2018. Nanoengineering: Fabrication, Properties, Optics, and Devices XV, San Diego, CA, August, 19-23, 2018, 13, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2321187

Towards mass fabrication of hot embossed plant surface texture replicas as photovoltaic cover layers
Fritz, B.; Guttmann, M.; Casas Soler, P.; Roslizar, A.; Langenhorst, M.; Schneider, M.; Paetzold, U. W.; Richards, B. S.; Lemmer, U.; Huenig, R.; Gomard, G.
2018. SPIE Nanoscience + Engineering - Nanoengineering: Fabrication, Properties, Optics, and Devices XV, San Diego, United States, USA,19–23 August 2018. Ed.: B. Panchapakesan, 107300J-1–17, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2320555

Role of packing density and spatial correlations in strongly scattering 3D systems
Pattelli, L.; Egel, A.; Lemmer, U.; Wiersma, D. S.
2018. Optica, 5 (9), 1037–1045. doi:10.1364/OPTICA.5.001037

Correction: Correlation of device performance and fermi level shift in the emitting layer of organic light-emitting diodes with amine-based electron injection layers (ACS Applied Materials and Interfaces (2018) 10:10 (8877-8884) DOI: 10.1021/acsami.7b16352)
Stolz, S.; Petzoldt, M.; Lemmer, U.; Bunz, U. H. F.; Hamburger, M.; Hernandez-Sosa, G.; Mankel, E.
2018. ACS applied materials & interfaces, 10 (34), 29187. doi:10.1021/acsami.8b09792

Freeform surface invisibility cloaking of interconnection lines in thin-film photovoltaic modules
Langenhorst, M.; Schumann, M. F.; Paetel, S.; Schmager, R.; Lemmer, U.; Richards, B. S.; Wegener, M.; Paetzold, U. W.
2018. Solar energy materials & solar cells, 182, 294–301. doi:10.1016/j.solmat.2018.03.034

Stable Perovskite Solar Cell Architectures: Robustness against Temperature Variations Under Real World Conditions
Schwenzer, J. A.; Rakocevic, L.; Abzieher, T.; Rueda-Delgad, D.; Gehlhaar, R.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2018. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC), 2816–2819, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2018.8547781

Solubility Modulation of Polyfluorene Emitters by Thermally Induced (Retro)-Diels–Alder Cross-Linking of Cyclopentadienyl Substituents
Ahrens, L.; Schlisske, S.; Strunk, K.-P.; Hinkel, F.; Melzer, C.; Bunz, U. H. F.; Lemmer, U.; Hernandez-Sosa, G.; Jänsch, D.; Freudenberg, J.; Müllen, K.
2018. Chemistry of materials, 30 (12), 4157–4167. doi:10.1021/acs.chemmater.8b01703

Substrate-Independent Surface Energy Tuning via Siloxane Treatment for Printed Electronics
Schlisske, S.; Held, M.; Rödlmeier, T.; Menghi, S.; Fuchs, K.; Ruscello, M.; Morfa, A. J.; Lemmer, U.; Hernandez-Sosa, G.
2018. Langmuir, 34 (21), 5964–5970. doi:10.1021/acs.langmuir.8b00304

Inkjet-Printed Triple Cation Perovskite Solar Cells
Mathies, F.; Eggers, H.; Richards, B. S.; Hernandez-Sosa, G.; Lemmer, U.; Paetzold, U. W.
2018. ACS Applied Energy Materials, 1 (5), 1834–1839. doi:10.1021/acsaem.8b00222

Enhanced color conversion efficiency of remote phosphor-converted light-emitting diodes using micro-concavity arrays
Yu, S.; Chen, J.; Tang, Y.; Li, Z.; Yu, B.; Lemmer, U.; Gomard, G.
2018. Organic Electronics and Photonics: Fundamentals and Devices, Strasbourg, F, 22–26, 2018, 52, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2319151

Temperature Variation-Induced Performance Decline of Perovskite Solar Cells
Schwenzer, J. A.; Rakocevic, L.; Gehlhaar, R.; Abzieher, T.; Gharibzadeh, S.; Moghadamzadeh, S.; Quintilla, A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2018. ACS applied materials & interfaces, 10 (19), 16390–16399. doi:10.1021/acsami.8b01033

Simulation of light scattering in clusters of nonspherical nanoparticles: an adapted T-matrix approach
Theobald, D.; Egel, A.; Gomard, G.; Lemmer, U.
2018. Nanophotonics, Strasbourg, France, 22–26 April 2018, 82, SPIE. doi:10.1117/12.2305921

Fully Digitally Printed Image Sensor Based on Organic Photodiodes
Eckstein, R.; Strobel, N.; Rödlmeier, T.; Glaser, K.; Lemmer, U.; Hernandez-Sosa, G.
2018. Advanced optical materials, 6 (5), 1701108. doi:10.1002/adom.201701108

Inkjet-printed internal light extraction layers for organic light emitting diodes
Eiselt, T.; Preinfalk, J. B.; Bittkau, K.; Gomard, G.; Hanemann, T.; Lemmer, U.
2018. Flexible and printed electronics, 3 (1), Art.Nr. 015007. doi:10.1088/2058-8585/aaa37b

Correlation of Device Performance and Fermi Level Shift in the Emitting Layer of Organic Light-Emitting Diodes with Amine-Based Electron Injection Layers
Stolz, S.; Lemmer, U.; Hernandez-Sosa, G.; Mankel, E.
2018. ACS applied materials & interfaces, 10 (10), 8877–8884. doi:10.1021/acsami.7b16352

Towards nano-patterned perovskite layers for enhanced absorption in solar cells
Schmager, R.; Abzieher, T.; Brenner, P.; Assadillayev, A.; Lee, D. J.; Moghadamzadeh, S.; Hossain, I. M.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2018. 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018; Waikoloa Village; United States; 10 June 2018 through 15 June 2018, 15–17, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2018.8548029

Towards Inexpensive and Stable All-Evaporated Perovskite Solar Cells for Industrial Large-Scale Fabrication
Abzieher, T.; Schwenzer, J. A.; Sutterlüti, F.; Pfau, M.; Lotter, E.; Het-Terich, M.; Lemmer, U.; Powalla, M.; Paetzold, U. W.
2018. 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018; Waikoloa Village; United States; 10 June 2018 through 15 June 2018, 2803–2807, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2018.8547364

Inkjet Printed Perovskite Photovoltaics
Mathies, F.; Richards, B. S.; Hernandez-Sosa, G.; Lemmer, U.; Paetzold, U. W.
2018. 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018; Waikoloa Village; United States; 10 June 2018 through 15 June 2018, 1721–1723, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2018.8548265

Design and Color Flexibility for Inkjet-Printed Perovskite Photovoltaics
Schlisske, S.; Mathies, F.; Busko, D.; Strobel, N.; Rödlmeier, T.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.; Hernandez-Sosa, G.; Klampaftis, E.
2018. ACS applied energy materials, 2 (1), 764–769. doi:10.1021/acsaem.8b01829

Energy yield of all thin-film perovskite/CIGS tandem solar modules
Langenhorst, M.; Sautter, B.; Schmager, R.; Lehr, J.; Ahlswede, E.; Powalla, M.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2018. Progress in photovoltaics, 27 (4), 290–298. doi:10.1002/pip.3091

Energy Yield Modelling of Wide Bandgap Perovskite-Based Tandem Solar Modules
Langenhorst, M.; Lehr, J.; Sautter, B.; Schmager, R.; Lemmer, U.; Richards, B.; Paetzold, U. W.
2018. Optics for Solar Energy, Singapore, 5–8 November 2018, OW5C.3/1–2, Optica Publishing Group (OSA). doi:10.1364/OSE.2018.OW5C.3

Realization of Colors and Patterns for Inkjet-Printed Perovskite Solar Cells
Schlisske, S.; Mathies, F.; Busko, D.; Strobel, N.; Rödlmeier, T.; Lemmer, U.; Paetzold, U. W.; Hernandez-Sosa, G.; Klampaftis, E.; Richards, B. S.
2018. Optics and Photonics for Energy and the Environment, Singapore, 5–8 November 2018, JM4A.6, Optica Publishing Group (OSA). doi:10.1364/EE.2018.JM4A.6

Energy yield modelling of perovskite/silicon two-terminal tandem PV modules with flat and textured interfaces
Lehr, J.; Langenhorst, M.; Schmager, R.; Kirner, S.; Lemmer, U.; Richards, B. S.; Case, C.; Paetzold, U. W.
2018. Sustainable energy & fuels, 2018 (2), 2754–2761. doi:10.1039/C8SE00465J

Fabrication of nanostructured polymers by laser-assisted hot embossing for biological and optical applications
Rakebrandt, J.-H.; Besser, H.; Habermehl, A.; Guttmann, M.; Wissmann, M.; Eschenbaum, C.; Lemmer, U.; Seifert, H. J.; Pfleging, W.
2018. Proceedings of the 18th International Conference of the European Society for Precision Engineering and Nanotechnology, Venice, I, June 4-8, 2018, 289–290, European Society for Precision Engineering and Nanotechnology (euspen)

Rigorous wave-optical treatment of photon recycling in thermodynamics of photovoltaics: Perovskite thin-film solar cells
Abebe, M. G.; Abass, A.; Gomard, G.; Zschiedrich, L.; Lemmer, U.; Richards, B. S.; Rockstuhl, C.; Paetzold, U. W.
2018. Physical review / B, 98 (7), Article: 075141. doi:10.1103/PhysRevB.98.075141

Micro Lasers by Scalable Lithography of Metal-Halide Perovskites
Bar-On, O.; Brenner, P.; Lemmer, U.; Scheuer, J.
2018. Advanced materials technologies, 3 (12), Article: 1800212. doi:10.1002/admt.201800212

Fluorescence Quenching Sensor Arrays for the Discrimination of Nitroaromatic Vapors
Bolse, N.; Habermehl, A.; Eschenbaum, C.; Lemmer, U.
2018. Electronic Nose Technologies and Advances in Machine Olfaction. Ed.: Y. Albastaki, 58–93, IGI Global. doi:10.4018/978-1-5225-3862-2.ch004

Light trapping in thin film silicon solar cells via phase separated disordered nanopillars
Donie, Y. J.; Smeets, M.; Egel, A.; Lentz, F.; Preinfalk, J. B.; Mertens, A.; Smirnov, V.; Lemmer, U.; Bittkau, K.; Gomard, G.
2018. Nanoscale, 10 (14), 6651–6659. doi:10.1039/C8NR00455B

Cloaking of metal grid electrodes on Lambertian emitters by free-form refractive surfaces
Schumann, M. F.; Fritz, B.; Eckstein, R.; Lemmer, U.; Gomard, G.; Wegener, M.
2018. Optics letters, 43 (3), 527–530. doi:10.1364/OL.43.000527

Inkjet-printed perovskite distributed feedback lasers
Mathies, F.; Brenner, P.; Hernandez-Sosa, G.; Howard, I. A.; Paetzold, U. W.; Lemmer, U.
2018. Optics express, 26 (2), A144 - A152. doi:10.1364/OE.26.00A144

Semiconductor:Insulator Blends for Speed Enhancement in Organic Photodiodes
Strobel, N.; Eckstein, R.; Lehr, J.; Lemmer, U.; Hernandez-Sosa, G.
2018. Advanced electronic materials, 4 (10), Article no 1700345. doi:10.1002/aelm.201700345

Disordered diffraction gratings tailored by shape-memory based wrinkling and their application to photovoltaics
Schauer, S.; Schmager, R.; Hünig, R.; Ding, K.; Paetzold, U. W.; Lemmer, U.; Worgull, M.; Hölscher, H.; Gomard, G.
2018. Optical materials express, 8 (1), 184–198. doi:10.1364/OME.8.000184

2017

Controlled molecular orientation of inkjet printed semiconducting polymer fibers by crystallization templating
Rödlmeier, T.; Marszalek, T.; Held, M.; Beck, S.; Müller, C.; Eckstein, R.; Morfa, A. J.; Lovrincic, R.; Pucci, A.; Lemmer, U.; Zaumseil, J.; Pisula, W.; Hernandez-Sosa, G.
2017. Chemistry of materials, 29 (23), 10150–10158. doi:10.1021/acs.chemmater.7b03948

Microfluidic surface-enhanced Raman analysis systems by aerosol jet printing: Towards low-cost integrated sensor systems
Habermehl, A.; Eckstein, R.; Strobel, N.; Bolse, N.; Hernandez-Sosa, G.; Mertens, A.; Eschenbaum, C.; Lemmer, U.
2017. 16th IEEE SENSORS Conference, ICSENS 2017, Glasgow, UK, October 29 - November 1, 2017, 1–3, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICSENS.2017.8234346

A low-cost versatile fluorescence quenching detection system for liquid- and vapor-phase sensing
Bolse, N.; Huber, R.; Habermehl, A.; Eckstein, R.; Hernandez-Sosa, G.; Mertens, A.; Eschenbaum, C.; Lemmer, U.
2017. Proceedings of the IEEE SENSORS 2017, Glasgow, UK, October 29 – November 1, 2017, 1–3, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICSENS.2017.8234424

Lab-on-Chip, Surface-Enhanced Raman Analysis by Aerosol Jet Printing and Roll-to-Roll Hot Embossing
Habermehl, A.; Strobel, N.; Eckstein, R.; Bolse, N.; Mertens, A.; Hernandez-Sosa, G.; Eschenbaum, C.; Lemmer, U.
2017. Sensors, 17 (10), 2401. doi:10.3390/s17102401

Replicated petal surfaces as light-harvesting layers for photovoltaics: the role of structural disorder
Fritz, B.; Hünig, R.; Schmager, R.; Hetterich, M.; Lemmer, U.; Gomard, G.
2017. 644. WE-Heraeus-Seminar

Numerical analysis of structural disorder effects for the design of plant-inspired light harvesting coatings
Fritz, B.; Hünig, R.; Schmager, R.; Hetterich, M.; Lemmer, U.; Gomard, G.
2017. European Materials Research Society (E-MRS)

Numerical analysis of structural disorder effects for the design of plant-inspired light harvesting coatings
Fritz, B.; Huenig, R.; Schmager, R.; Hetterich, M.; Lemmer, U.; Gomard, G.
2017. Spring School: Tailored Disorder, Karlsruher Institut für Technologie (KIT)

Realization of high-Q cavities and lasers using Soft Nano imprinting Lithography
Scheuer, J.; Bar-On, O.; Brenner, P.; Gvishi, R.; Lemmer, U.
2017. Proceedings of the 30th Annual Conference of the IEEE Photonics Society, IPC 2017, Orlando, Florida, USA, 1st - 5th October 2017, 215–216, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/IPCon.2017.8116076

Digital Aerosol Jet Printing for the Fabrication of Terahertz Metamaterials
Jahn, D.; Eckstein, R.; Schneider, L. M.; Born, N.; Hernandez-Sosa, G.; Balzer, J. C.; Al-Naib, I.; Lemmer, U.; Koch, M.
2017. Advanced Materials Technologies, 3 (2), Art.Nr. 1700236. doi:10.1002/admt.201700236

Three dimensional whispering gallery mode resonators and microlasers made by a combination of direct laser writing and soft nanoimprint lithography
Brenner, P.; Leonhard, T.; Eschenbaum, C.; Lemmer, U.; Bar-On, O.; Scheuer, J.; Siegle, T.; Kalt, H.; Gvishi, R.; Eschenbaum, C.; Lemmer, U.
2017. Proceedings of the European Conference on Lasers and Electro-Optics, CLEO_Europe 2017, Munich, Germany, 25th - 29th June 2017, Art.Nr. CK_P_17, Optica Publishing Group (OSA)

Scalable and low cost fabrication methods for wavelength tunable solution processed perovskite distributed feedback lasers
Brenner, P.; Mathies, F.; Kapp, D.; Paetzold, U.; Quintilla, A.; Hernandez-Sosa, G.; Howard, I.; Lemmer, U.
2017. Proceedings of the European Conference on Lasers and Electro-Optics 2017, Munich, Germany, 25th - 29th June 2017, Art.Nr. JSV_3_2, Optica Publishing Group (OSA)

Screen-printed internal extraction layers based on scattering polymer/nanoparticle composites for OLEDs
Preinfalk, J. B.; Eiselt, T.; Wehlus, T.; Rohnacher, V.; Hanemann, T.; Gomard, G.; Lemmer, U.
2017. Solid-State Lighting, SSL 2017, Boulder; United States, 6th - 9th November 2017, Optica Publishing Group (OSA). doi:10.1364/SSL.2017.SW2C.4

Performance of silicon solar cells with cloaked contact fingers under realistic conditions
Langenhorst, M.; Schumann, M. F.; Schmager, R.; Lehr, J.; Lemmer, U.; Wegener, M.; Richards, B.; Paetzold, U. W.
2017. Optical Nanostructures and Advanced Materials for Photovoltaics, Boulder, United States, 6th - 9th November 2017, Optica Publishing Group (OSA). doi:10.1364/PV.2017.PW2A.3

SnO₂ Nanowire Based Aerosol Jet Printed Electronic Nose as Fire Detector
Adib, M.; Eckstein, R.; Hernandez-Sosa, G.; Sommer, M.; Lemmer, U.
2017. IEEE sensors journal, 18 (2), 494–500. doi:10.1109/JSEN.2017.2777178

Additive-Assisted Crystallization Dynamics in Two-Step Fabrication of Perovskite Solar Cells
Abzieher, T.; Mathies, F.; Hetterich, M.; Welle, A.; Gerthsen, D.; Lemmer, U.; Paetzold, U. W.; Powalla, M.
2017. Physica status solidi / A, 214 (12), Art.Nr. 1700509. doi:10.1002/pssa.201700509

Triple cation mixed-halide perovskites for tunable lasers
Brenner, P.; Glöckler, T.; Rueda-Delgado, D.; Abzieher, T.; Jakoby, M.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Lemmer, U.
2017. Optical materials express, 7 (11), 4082–4094. doi:10.1364/OME.7.004082

Bioinspired phase-separated disordered nanostructures for thin photovoltaic absorbers
Siddique, R. H.; Donie, Y. J.; Gomard, G.; Yalamanchili, S.; Merdzhanova, T.; Lemmer, U.; Hölscher, H.
2017. Science advances, 3 (10), e1700232. doi:10.1126/sciadv.1700232

Texture of the Viola Flower for Light Harvesting in Photovoltaics
Schmager, R.; Fritz, B.; Hünig, R.; Ding, K.; Lemmer, U.; Richards, B. S.; Gomard, G.; Paetzold, U. W.
2017. ACS photonics, 2687–2692. doi:10.1021/acsphotonics.7b01153

Reliability of Aerosol Jet Printed Fluorescence Quenching Sensor Arrays for the Identification and Quantification of Explosive Vapors
Bolse, N.; Eckstein, R.; Habermehl, A.; Hernandez-Sosa, G.; Eschenbaum, C.; Lemmer, U.
2017. ACS omega, 2 (10), 6500–6505. doi:10.1021/acsomega.7b01263

Plane-wave coupling formalism for T-matrix simulations of light scattering by nonspherical particles
Theobald, D.; Egel, A.; Gomard, G.; Lemmer, U.
2017. Physical review / A, 96 (3), Art. Nr. 033822. doi:10.1103/PhysRevA.96.033822

3D integrated photonics based on fast sol-gel technology and soft nano imprint lithography
Bar-On, O.; Brenner, P.; Gvishi, R.; Siegle, T.; Kalt, H.; Lemmer, U.; Scheuer, J.
2017. Advanced Photonics, NOMA 2017; New Orleans; United States; 24 July 2017 through 27 July 2017, 3 S., Optica Publishing Group (OSA). doi:10.1364/NOMA.2017.NoTh1C.5

Extending the applicability of the T-matrix method to light scattering by flat particles on a substrate via truncation of sommerfeld integrals
Egel, A.; Eremin, Y.; Wriedt, T.; Theobald, D.; Lemmer, U.; Gomard, G.
2017. Journal of quantitative spectroscopy & radiative transfer, 202, 279–285. doi:10.1016/j.jqsrt.2017.08.016

Transient response of a microfibrous web array for the discrimination of nitroaromatic explosive vapors
Bolse, N.; Schend, M.; Habermehl, A.; Eschenbaum, C.; Lemmer, U.
2017. 2017 ISOCS/IEEE International Symposium on Olfaction and Electronic Nose (ISOEN), Montreal, QC, Canada, 28–31 May 2017, 1–3, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ISOEN.2017.7968850

Slot Die Coated and Flexo Printed Highly Efficient SMOLEDs
Raupp, S.; Daume, D.; Tekoglu, S.; Merklein, L.; Lemmer, U.; Hernandez-Sosa, G.; Sauer, H. M.; Dörsam, E.; Scharfer, P.; Schabel, W.
2017. Advanced materials technologies, 2 (2), Art. Nr.: 1600230. doi:10.1002/admt.201600230

CELES : CUDA-accelerated simulation of electromagnetic scattering by large ensembles of spheres
Egel, A.; Pattelli, L.; Mazzamuto, G.; Wiersma, D. S.; Lemmer, U.
2017. Journal of quantitative spectroscopy & radiative transfer, 199, 103–110. doi:10.1016/j.jqsrt.2017.05.010

Identifying Charge-Transfer States in Polymer:Fullerene Heterojunctions by Their Emission Polarization Anisotropy
Arndt, A. P.; Gerhard, M.; Koch, M.; Lemmer, U.; Howard, I. A.
2017. The journal of physical chemistry <Washington, DC> / C, 121 (11), 6357–6364. doi:10.1021/acs.jpcc.6b12853

Field-induced exciton dissociation in PTB7-based organic solar cells
Gerhard, M.; Arndt, A. P.; Bilal, M.; Lemmer, U.; Koch, M.; Howard, I. A.
2017. Physical review / B, 95 (19), Art.Nr. 195301. doi:10.1103/PhysRevB.95.195301

Assessing the influence of structural disorder on the plant epidermal cells’ optical properties: a numerical analysis
Fritz, B.; Hünig, R.; Schmager, R.; Hetterich, M.; Lemmer, U.; Gomard, G.
2017. Bioinspiration & biomimetics, 12 (3), Art.Nr. 036011. doi:10.1088/1748-3190/aa6c46

Discrimination of trace nitroaromatics using linear discriminant analysis on aerosol jet printed fluorescent sensor arrays
Bolse, N.; Eckstein, R.; Schend, M.; Habermehl, A.; Hernandez-Sosa, G.; Eschenbaum, C.; Lemmer, U.
2017. SPIE Optics and Optoelectronics, Prague, Czech Republic, April 24th - 27th 2017. Ed.: F. Baldini, Art. Nr. 102310R, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2265522

3D whispering-gallery-mode microlasers by direct laser writing and subsequent soft nanoimprint lithography
Brenner, P.; Bar-On, O.; Siegle, T.; Leonhard, T.; Gvishi, R.; Eschenbaum, C.; Kalt, H.; Scheuer, J.; Lemmer, U.
2017. Applied optics, 56 (13), 3703. doi:10.1364/AO.56.003703

A digitally printed optoelectronic nose for the selective trace detection of nitroaromatic explosive vapours using fluorescence quenching
Bolse, N.; Eckstein, R.; Schend, M.; Habermehl, A.; Eschenbaum, C.; Hernandez-Sosa, G.; Lemmer, U.
2017. Flexible and printed electronics, 2 (2), Art. Nr. 024001. doi:10.1088/2058-8585/aa6601

Large-Area Screen-Printed Internal Extraction Layers for Organic Light-Emitting Diodes
Preinfalk, J. B.; Eiselt, T.; Wehlus, T.; Rohnacher, V.; Hanemann, T.; Gomard, G.; Lemmer, U.
2017. ACS photonics, 4 (4), 928–933. doi:10.1021/acsphotonics.6b01027

Fabrication of SERS Substrates by Roll-to-Roll Hot Embossing
Habermehl, A.; Liu, X.; Eschenbaum, C.; Lemmer, U.
2017. Nano-Optics: Principles Enabling Basic Research and Applications. Ed.: B. Di Bartolo, 513–515, Springer Netherlands. doi:10.1007/978-94-024-0850-8_55

Degradation Mechanisms in Organic Light-Emitting Diodes with Polyethylenimine as a Solution-Processed Electron Injection Layer
Stolz, S.; Zhang, Y.; Lemmer, U.; Hernandez-Sosa, G.; Aziz, H.
2017. ACS applied materials & interfaces, 9 (3), 2776–2785. doi:10.1021/acsami.6b15062

Accurate optical simulation of nano-particle based internal scattering layers for light outcoupling from organic light emitting diodes
Egel, A.; Gomard, G.; Kettlitz, S. W.; Lemmer, U.
2017. Journal of optics, 19 (2), Art. Nr. 025605. doi:10.1088/2040-8986/aa5523

In situ Studies of Morphology Formation in Solution-Processed Polymer-Fullerene Blends
Barrena, E.; Buss, F.; Perez-Rodriguez, A.; Sanyal, M.; Schmidt-Hansberg, B.; Klein, M. F. G.; Scharfer, P.; Schabel, W.; Lemmer, U.
2017. Elementary processes in organic photovoltaics. Ed.: K. Leo, 1–24, Springer. doi:10.1007/978-3-319-28338-8_1

2016

Printed sensor arrays for the fluorescence detection of explosive traces
Bolse, N.; Eckstein, R.; Schend, M.; Habermehl, A.; Hernandez-Sosa, G.; Eschenbaum, C.; Lemmer, U.
2016. Engineering and Life, Hannover, 19.-21. Oktober 2016

Roll-to-roll fabrication approaches for surface-enhanced Raman spectroscopy
Habermehl, A.; Eckstein, R.; Bolse, N.; Eschenbaum, C.; Hernandez-Sosa, G.; Lemmer, U.
2016. Engineering and Life, Hannover, 19.-21. Oktober 2016

OLEDs Exceeding 1000 cd/A Current Efficiency
Lemmer, U.
2016. Solid-State Lighting, SSL 2016; Leipzig; Germany; 14 November 2016 through 17 November 2016, Optica Publishing Group (OSA). doi:10.1364/SSL.2016.SSW3C.3

Soft Lithography of 3D Polymeric Lasers and Cavities
Bar-On, O.; Brenner, P.; Siegle, T.; Gvishi, R.; Krämmer, S.; Kalt, H.; Lemmer, U.; Scheuer, J.
2016. Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, June 5-10, 2016, Paper SM4E.3, Optica Publishing Group (OSA). doi:10.1364/CLEO_SI.2016.SM4E.3

One-step additive crosslinking of conjugated polyelectrolyte interlayers: Improved lifetime and performance of solution-processed OLEDs
Stolz, S.; Petzoldt, M.; Kotadiya, N.; Rödlmeier, T.; Eckstein, R.; Freudenberg, J.; Bunz, U. H. F.; Lemmer, U.; Mankel, E.; Hamburger, M.; Hernandez-Sosa, G.
2016. Journal of materials chemistry / C, 4 (47), 11150–11156. doi:10.1039/c6tc04417d

Multipass inkjet printed planar methylammonium lead iodide perovskite solar cells
Mathies, F.; Abzieher, T.; Hochstuhl, A.; Glaser, K.; Colsmann, A.; Paetzold, U. W.; Hernandez-Sosa, G.; Lemmer, U.; Quintilla, A.
2016. Journal of materials chemistry / A, 4 (48), 19207–19213. doi:10.1039/C6TA07972E

Development and characterization of high refractive index and high scattering acrylate polymer layers
Eiselt, T.; Gomard, G.; Preinfalk, J.; Gleißner, U.; Lemmer, U.; Hanemann, T.
2016. Optical engineering, 55 (11), Art. Nr. 117106. doi:10.1117/1.OE.55.11.117106

Light Management in Thin Film Solar Cells using Internal Scattering Layers made by Polymer Blend Lithography
Donie, Y. J.; Smeets, M.; Smirnov, V.; Preinfalk, J. B.; Egel, A.; Lemmer, U.; Bittkau, K.; Gomard, G.
2016. Optical Nanostructures and Advanced Materials for Photovoltaics 2016, Leipzig, 14.-17. November 2016, PTh2A.6, Optica Publishing Group (OSA). doi:10.1364/PV.2016.PTh2A.6

Accurate Modeling of Outcoupling from OLEDs: Volumetric versus Flat Internal Scattering Layers
Egel, A.; Theobald, D.; Donie, Y. J.; Preinfalk, J. B.; Gomard, G.; Lemmer, U.
2016. Solid-State Lighting 2016, Leipzig, 14.-17. November 2016, SSW2D.3, Optica Publishing Group (OSA). doi:10.1364/SSL.2016.SSW2D.3

Highly stable solution processed metal-halide perovskite lasers on nanoimprinted distributed feedback structures
Brenner, P.; Stulz, M.; Kapp, D.; Abzieher, T.; Paetzold, U. W.; Quintilla, A.; Howard, I. A.; Kalt, H.; Lemmer, U.
2016. Applied physics letters, 109 (14), 141106. doi:10.1063/1.4963893

Light scattering by oblate particles near planar interfaces: on the validity of the T-matrix approach
Egel, A.; Theobald, D.; Donie, Y.; Lemmer, U.; Gomard, G.
2016. Optics express, 24 (22), 25154–25168. doi:10.1364/OE.24.025154

Development and characterization of adjustable refractive index scattering epoxy acrylate polymer layers
Eiselt, T.; Preinfalk, J.; Gleißner, U.; Lemmer, U.; Hanemann, T.
2016. Light Manipulating Organic Materials and Devices III : Proceedings of SPIE Optics and Photonics, San Diego, CA, August 28 - September 1, 2016. Ed.: J. E. Haley, 99390Q/1–7, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2235905

Photon management in solution-processed organic light-emitting diodes : a review of light outcoupling micro- and nanostructures
Gomard, G.; Preinfalk, J. B.; Egel, A.; Lemmer, U.
2016. Journal of photonics for energy, 6 (3), 030901. doi:10.1117/1.JPE.6.030901

Digitally Printed Dewetting Patterns for Self-Organized Microelectronics
Eckstein, R.; Alt, M.; Rödlmeier, T.; Scharfer, P.; Lemmer, U.; Hernandez-Sosa, G.
2016. Advanced materials, 28 (35), 7708–7715. doi:10.1002/adma.201602082

A compaative study of Coumarin 102 and Nile Red for the detection of explosives, warfare agents and narcotics by solution-phase fluorescence quenching
Bolse, N.; Eschenbaum, C.; Lemmer, U.
2016. Optical Sensors 2016, Vancouver, CDN, July 18-20, 2016. OSA Technical Digest, SeW1F.3, Optica Publishing Group (OSA)

Flower Power: Exploiting Plants’ Epidermal Structures for Enhanced Light Harvesting in Thin-Film Solar Cells
Hünig, R.; Mertens, A.; Stephan, M.; Schulz, A.; Richter, B.; Hetterich, M.; Powalla, M.; Lemmer, U.; Colsmann, A.; Gomard, G.
2016. Advanced optical materials, 4 (10), 1487–1493. doi:10.1002/adom.201600046

Loss mechanisms in organic solar cells based on perylene diimide acceptors studied by time-resolved photoluminescence
Gerhard, M.; Gehring, D.; Howard, I. A.; Arndt, A. P.; Bilal, M.; Rahimi-Iman, A.; Lemmer, U.; Laquai, F.; Koch, M.
2016. Organic Photonics VII. Ed.: D. Cheyns, 98950H, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2227672

High-Performance Electron Injection Layers with a Wide Processing Window from an Amidoamine-Functionalized Polyfluorene
Stolz, S.; Petzoldt, M.; Dück, S.; Sendner, M.; Bunz, U. H. F.; Lemmer, U.; Hamburger, M.; Hernandez-Sosa, G.
2016. ACS Applied Materials and Interfaces, 8 (20), 12959–12967. doi:10.1021/acsami.6b03557

Development and characterization of high refractive index and high scattering acrylate polymer layers
Eiselt, T.; Gomard, G.; Preinfalk, J.; Gleissner, U.; Lemmer, U.; Hanemann, T.
2016. Micro Optics 2016 : Proceedings of Photonics Europe, Bruxelles, B, April 3-7, 2016. Ed.: H. Thienpont, 98880Q, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2227327

Optoelectrical improvement of ultra-thin Cu(In,Ga)Se₂ solar cells through microstructured MgF₂ and Al₂O₃ back contact passivation layer
Casper, P.; Hünig, R.; Gomard, G.; Kiowski, O.; Reitz, C.; Lemmer, U.; Powalla, M.; Hetterich, M.
2016. Physica status solidi / Rapid research letters, 10 (5), 376–380. doi:10.1002/pssr.201600018

Emissive Polyelectrolytes As Interlayer for Color Tuning and Electron Injection in Solution-Processed Light-Emitting Devices
Tekoglu, S.; Petzoldt, M.; Stolz, S.; Bunz, U. H. F.; Lemmer, U.; Hamburger, M.; Hernandez-Sosa, G.
2016. ACS Applied Materials and Interfaces, 8 (11), 7320–7325. doi:10.1021/acsami.6b00665

Adjustable passivation of SiO₂ trap states in OFETs by an ultrathin CVD deposited polymer coating
Alt, M.; Melzer, C.; Mathies, F.; Deing, K.; Hernandez-Sosa, G.; Lemmer, U.
2016. Applied physics / A, 122, Art. Nr. 204. doi:10.1007/s00339-016-9678-6

Cloaking Contacts on Large-Area Organic Light-Emitting Diodes
Mayer, F.; Schittny, R.; Egel, A.; Niemeyer, A.; Preinfalk, J.; Lemmer, U.; Wegener, M.
2016. Advanced optical materials, 4 (5), 740–745. doi:10.1002/adom.201500652

Understanding the effect of solvent vapor annealing on solution-processed A-D-A oligothiophene bulk-heterojunction solar cells: The role of alkyl side chains
Wessendorf, C. D.; Perez-Rodriguez, A.; Hanisch, J.; Arndt, A. P.; Ata, I.; Schulz, G. L.; Quintilla, A.; Bäuerle, P.; Lemmer, U.; Wochner, P.; Ahlswede, E.; Barrena, E.
2016. Journal of Materials Chemistry A, 4 (7), 2571–2580. doi:10.1039/c5ta07713c

Naphthalene Tetracarboxydiimide-Based n-Type Polymers with Removable Solubility via Thermally Cleavable Side Chains
Hillebrandt, S.; Adermann, T.; Alt, M.; Schinke, J.; Glaser, T.; Mankel, E.; Hernandez-Sosa, G.; Jaegermann, W.; Lemmer, U.; Pucci, A.; Kowalsky, W.; Müllen, K.; Lovrincic, R.; Hamburger, M.
2016. ACS Applied Materials and Interfaces, 8 (7), 4940–4945. doi:10.1021/acsami.5b10901

Efficient evaluation of Sommerfeld integrals for the optical simulation of many scattering particles in planarly layered media
Egel, A.; Kettlitz, S. W.; Lemmer, U.
2016. Journal of the Optical Society of America A, 33 (4), 698–706. doi:10.1364/JOSAA.33.000698

Position sensing by transient photocurrents of organic photodiodes
Arndt, A. P.; Kettlitz, S. W.; Mescher, J.; Lemmer, U.
2016. IEEE photonics technology letters, 28 (6), 617–620. doi:10.1109/LPT.2015.2503050

Tuning the Microcavity of Organic Light Emitting Diodes by Solution Processable Polymer-Nanoparticle Composite Layers
Preinfalk, J. B.; Schackmar, F. R.; Lampe, T.; Egel, A.; Schmidt, T. D.; Brütting, W.; Gomard, G.; Lemmer, U.
2016. ACS Applied Materials and Interfaces, 8 (4), 2666–2672. doi:10.1021/acsami.5b10717

2015

Colloquium Fundamentale SS 2015 - Optik & Photonik: Lichtbasierte Schlüsseltechnologie für das 21. Jahrhundert
Lemmer, U.
2015. (Zentrum für Angewandte Kulturwissenschaft und Studium Generale (ZAK), Hrsg.). doi:10.5445/DIVA/2015-743

Time-resolved spectroscopy of charge transfer phenomena in organic solar cells
Gerhard, M.; Arndt, A.; Quintilla, A.; Rahimi-Iman, A.; Lemmer, U.; Koch, M.
2015. SPIE OPTO - Organic Photonic Materials and Devices XVII, San Francisco, California, United States, 2015, 936010, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2076138

Temperature-control for optical vapor sensors based on photoluminescence quenching
Bolse, N.; Chouikh, G.; Sellner, M.; Eschenbaum, C.; Lemmer, U.
2015. Advanced Photonics 2015: Optical Sensors: Boston, Massachusetts, United States ; 27 June – 1 July 2015, Optica Publishing Group (OSA). doi:10.1364/SENSORS.2015.SeT2D.6

SERS-Substrate zur Integration in mikrofluidische Sensorsysteme
Habermehl, A.; Eckstein, R.; König, F.; Liu, X.; Eschenbaum, C.; Lemmer, U.
2015. MikroSystemTechnik Kongress (2015), Karlsruhe, Deutschland, 26.–28. Oktober 2015

Modeling approach to derive the anisotropic complex refractive index of polymer:fullerene blends for organic solar cells utilizing spectroscopic ellipsometry
Klein, M. F. G.; Medeiros, G. Q. G. de; Kapetana, P.; Lemmer, U.; Colsmann, A.
2015. Journal of photonics for energy, 5 (1), Art. Nr.: 057204. doi:10.1117/1.JPE.5.057204

Temperature- and energy-dependent separation of charge-transfer states in PTB7-based organic solar cells
Gerhard, M.; Arndt, A. P.; Howard, I. A.; Rahimi-Iman, A.; Lemmer, U.; Koch, M.
2015. The journal of physical chemistry <Washington, DC> / C, 119 (51), 28309–28318. doi:10.1021/acs.jpcc.5b09842

Shape-memory polymer resonators for novel continuously tunable organic distributed feedback lasers
Schauer, S.; Liu, X.; Worgull, M.; Lemmer, U.; Hölscher, H.
2015. SPIE Optics and Photonics 2015, San Diego, Calif., August 9-13, 2015

Degradation in aluminum resonant optical rod antennas
Schwab, P. M.; Moosmann, C.; Dopf, K.; Ilin, K. S.; Siegel, M.; Lemmer, U.; Eisler, H. J.
2015. Optical Metamaterials and Novel Optical Phenomena Based on Nanofabricated Structures : Proceedings of Symposium I of the Materials Research Society Fall Meeting 2014, Boston, Mass., November 30 - December 5, 2014. Ed.: Y. Liu, 10–15, MRS. doi:10.1557/opl.2015.40

Complementary microscopy platform for investigations of hybrid nanostructures comprising quantum dots and plasmonic particles
Dopf, K.; Schwab, P. M.; Moosmann, C.; Habermehl, A.; Lemmer, U.; Eisler, H. J.
2015. Symposium II – Semiconductor Nanocrystals, Plasmonic Metal Nanoparticles, and Metal-Hybrid Structures : Proceedings of Symposium II of the Materials Research Society Fall Meeting 2014, Boston, Mass., November 30 - December 5, 2014. Ed.: M. Kuno, mrsf14–1748-ii05, MRS. doi:10.1557/opl.2015.94

Coupled T-shaped optical antennas with two resonances localized in a common nanogap
Dopf, K.; Moosmann, C.; Kettlitz, S. W.; Schwab, P. M.; Ilin, K.; Siegel, M.; Lemmer, U.; Eisler, H. J.
2015. ACS photonics, 2 (11), 1644–1651. doi:10.1021/acsphotonics.5b00446

Single-pass and omniangle light extraction from light-emitting diodes using transformation optics
Schumann, M. F.; Abass, A.; Gomard, G.; Wiesendanger, S.; Lemmer, U.; Wegener, M.; Rockstuhl, C.
2015. Optics letters, 40 (23), 5626–5629. doi:10.1364/OL.40.005626

Light emission, light detection and strain sensing with nanocrystalline graphene
Riaz, A.; Pyatkov, F.; Alam, A.; Dehm, S.; Felten, A.; Chakravadhanula, V. S. K.; Flavel, B. S.; Kübel, C.; Lemmer, U.; Krupke, R.
2015. Nanotechnology, 26, 325202/1–10. doi:10.1088/0957-4484/26/32/325202

Dipolar SAMs reduce charge carrier injection barriers in n-channel organic field effect transistors
Jesper, M.; Alt, M.; Schinke, J.; Hillebrandt, S.; Angelova, I.; Rohnacher, V.; Pucci, A.; Lemmer, U.; Jaegermann, W.; Kowalsky, W.; Glaser, T.; Mankel, E.; Lovrincic, R.; Golling, F.; Hamburger, M.; Bunz, U. H. F.
2015. Langmuir, 31 (37), 10303–10309. doi:10.1021/acs.langmuir.5b02316

A biphasic mercury-ion sensor: Exploiting microfluidics to make simple anilines competitive ligands
Petzold, M.; Eschenbaum, C.; Schwaebel, S. T.; Broedner, K.; Lemmer, U.; Hamburger, M.; Bunz, U. H. F.
2015. Chemistry - a European journal, 21, 14297–14300. doi:10.1002/chem.201502736

Illumination angle and layer thickness influence on the photo current generation in organic solar cells: A combined simulative and experimental study
Mescher, J.; Mertens, A.; Egel, A.; Kettlitz, S. W.; Lemmer, U.; Colsmann, A.
2015. AIP Advances, 5 (7), 077188/1–6. doi:10.1063/1.4928074

Aerosol-jet printed flexible organic photodiodes: Semi-transparent, color neutral, and highly efficient
Eckstein, R.; Rödlmeier, T.; Glaser, T.; Valouch, S.; Mauer, R.; Lemmer, U.; Hernandez-Sosa, G.
2015. Advanced electronic materials, 1 (8), 1500101/1–7. doi:10.1002/aelm.201500101

Time-resolved charge-transfer state emission in organic solar cells : Temperature and blend composition dependences of interfacial traps
Arndt, A. P.; Gerhard, M.; Quintilla, A.; Howard, I. A.; Koch, M. W.; Lemmer, U.
2015. The journal of physical chemistry <Washington, DC> / C, 119 (24), 13516–13523. doi:10.1021/acs.jpcc.5b03507

Degradation mechanisms of polyfluorene-based organic semiconductor lasers under ambient and oxygen-free conditions
Brenner, P.; Fleig, L. M.; Liu, X.; Welle, A.; Bräse, S.; Lemmer, U.
2015. Journal of polymer science / B, 53, 1029–1034. doi:10.1002/polb.23733

Charge generation layers for solution processed tandem organic light emitting diodes with regular device architecture
Höfle, S.; Bernhard, C.; Bruns, M.; Kübel, C.; Scherer, T.; Lemmer, U.; Colsmann, A.
2015. ACS applied materials & interfaces, 7, 8132–8137. doi:10.1021/acsami.5b00883

Fabrication of hierarchical photonic nanostructures inspired by Morpho butterflies utilizing laser interference lithography
Siddique, R. H.; Hünig, R.; Faisal, A.; Lemmer, U.; Hölscher, H.
2015. Optical materials express, 5 (5), 996–1005. doi:10.1364/OME.5.000996

Tailored surface-enhanced raman nanopillar arrays fabricated by laser-assisted replication for biomolecular detection using organic semiconductor lasers
Liu, X.; Lebedkin, S.; Besser, H.; Pfleging, W.; Prinz, S.; Wissmann, M.; Schwab, P. M.; Nazarenko, I.; Guttmann, M.; Kappes, M. M.; Lemmer, U.
2015. ACS nano, 9, 260–270. doi:10.1021/nn506589a

Soluble diazaiptycenes: materials for solution-processed organic electronics
Biegger, P.; Stolz, S.; Intorp, S. N.; Zhang, Y.; Engelhart, J. U.; Rominger, F.; Hardcastle, K. I.; Lemmer, U.; Qian, X.; Hamburger, M.; Bunz, U. H. F.
2015. The journal of organic chemistry, 80, 582–589. doi:10.1021/jo502564w

Shape-memory polymers as flexible resonator substrates for continuously tunable organic DFB lasers
Schauer, S.; Liu, X.; Worgull, M.; Lemmer, U.; Hölscher, H.
2015. Optical materials express, 5 (3), 576–584. doi:10.1364/OME.5.000576

2014

Utilizing laser interference lithography to fabricate hierarchical optical active nanostructures inspired by the blue Morpho butterfly
Siddique, R. H.; Faisal, A.; Hünig, R.; Bartels, C.; Wacker, I.; Lemmer, U.; Hölscher, H.
2014. SPIE Optical Engineering + Applications - The Nature of Light: Light in Nature V, San Diego, California, United States, 18 August 2014, 91870E, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2066467

Synthesis and performance of new polymers bearing thermally cleavable solubilizing groups for use in printable organic electronics
Adermann, T.; Kuhn, M.; Schinke, J.; Lovrincic, R.; Alt, M.; Mechau, N.; Hoefle, S.; Colsman, A.; Bunz, U.; Muellen, K.; Kowalsky, W.; Lemmer, U.; Hamburger, M.
2014. Abstracts of papers, 247

Sensitivity improvement in fluorescence-based particle detection
Kettlitz, S. W.; Moosmann, C.; Valouch, S.; Lemmer, U.
2014. Cytometry / A, 85 (9), 746–755. doi:10.1002/cyto.a.22499

A comparative study of Coumarin 102 and Nile Red for the detection of explosives, warfare agents and narcotics by solution-phase fluorescence quenching
Bolse, N.; Eschenbaum, C.; Lemmer, U.
2014. Optical Sensors 2016, Vancouver, Canada, 18-20 July 2016, Art. Nr. SeW1F.3, Optica Publishing Group (OSA). doi:10.1364/SENSORS.2016.SeW1F.3

Surface-Enhanced Raman Spectroscopy (SERS) using Nanopillar Arrays as Functional Substrates and an Organic Semiconductor DFB Laser as Excitation Source
Liu, X.; Lebedkin, S.; Pfleging, W.; Besser, H.; Wissmann, M.; Nazarenko, I.; Mappes, T.; Koeber, S.; Koos, C. G.; Kappes, M.; Lemmer, U.
2014. 2014 Conference on Lasers and Electro-Optics, CLEO: Science and Innovations : Part of CLEO 2014, San Jose, CA, June 8 - 13, 2014, paper STh4H.8, Optica Publishing Group (OSA). doi:10.1364/CLEO_SI.2014.STh4H.8

Organic photovoltaics and energy: general discussion
Hodgkiss, J.; Conboy, G.; Hutchings, G.; Higgins, S.; Galbraith, I.; Findlay, N.; Taylor, R.; Salle, M.; Zhang, S.; Frey, G.; Bâldea, I.; Samuel, I.; Ebenhoch, B.; Wudl, F.; Turak, A.; Xu, B.; Angioni, E.; Venkatramani, R.; Lemmer, U.; Perepichka, D.; Kanibolotsky, A.; Skabara, P.; Wildman, J.; Zysman-Colman, E.; Bradley, D.; McCulloch, I.; McDouall, J.; Ponomarenko, S.; Nelson, J.; Kim, J.-S.
2014. Faraday Discussions, 174, 341–355. doi:10.1039/C4FD90050B

Organic bioelectronics: general discussion
Higgins, S.; Hodgkiss, J.; Plank, N.; Torsi, L.; Cowper, P.; Malliaras, G.; Braeken, Y.; Laurand, N.; Samuel, I.; Pomorska, A.; Wudl, F.; Xu, B.; Lemmer, U.; Perepichka, D.; Mount, A.; Dennany, L.; Bradley, D.; Melzer, K.
2014. Faraday Discussions, 174, 413–428. doi:10.1039/C4FD90048K

Molecular electronics: general discussion
Hodgkiss, J.; Zysman-Colman, E.; Higgins, S.; Solomon, G.; Bâldea, I.; Samuel, I.; Venkataraman, L.; Wudl, F.; Xu, B.; Venkatramani, R.; Ottosson, H.; Perepichka, D.; Lemmer, U.; Skabara, P.; Mount, A.; Bradley, D.
2014. Faraday Discussions, 174, 125–151. doi:10.1039/C4FD90049A

Dipole Emission in Layered Media with Multiple Spherical Scatterers
Egel, A.; Lemmer, U.
2014. Scattering by Aggregates on Surfaces : [proceedings of the Workshop Scattering by Aggregates (on Surfaces) ... held at Institut für Werkstofftechnik on March 24 - 25, 2014 on the University of Bremen Campus]. Ed.: T. Wriedt, 62–65, epubli GmbH

Simulation of semi-transparent organic tandem solar cells for solar shading
Mescher, J.; Kettlitz, S. W.; Christ, N.; Klein, M. F. G.; Pütz, A.; Mertens, A.; Colsmann, A.; Lemmer, U.
2014. 14th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD 2014) : Palma de Mallorca, Spain, 1 - 4 September 2014. Ed.: J. Piprek, 165–166, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/NUSOD.2014.6935408

Compensation for RC-effects in organic photodiodes with large sheet resistances
Kettlitz, S. W.; Mescher, J.; Lemmer, U.
2014. 14th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD 2014) : Palma de Mallorca, Spain, 1 - 4 September 2014. Ed.: J. Piprek, 177–178, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/NUSOD.2014.6935414

A simple tracking system to monitor solar PV panels
Bentaher, H.; Kaich, H.; Ayadi, N.; Ben Hmouda, M.; Maalej, A.; Lemmer, U.
2014. Energy Conversion and Management, 78, 872–875. doi:10.1016/j.enconman.2013.09.042

Extracting the charge carrier mobility from the nanosecond photocurrent response of organic solar cells and photodiodes
Christ, N.; Kettlitz, S. W.; Mescher, J.; Lemmer, U.
2014. Applied Physics Letters, 104 (5), 053302. doi:10.1063/1.4863737

Modelling and simulation of gate leakage currents of solution-processed OTFT
Hengen, S.; Alt, M.; Hernandez-Sosa, G.; Giehl, J.; Lemmer, U.; Mechau, N.
2014. Organic Electronics: physics, materials, applications, 15 (3), 829–834. doi:10.1016/j.orgel.2013.12.022

Investigation of Solution-Processed Ultrathin Electron Injection Layers for Organic Light-Emitting Diodes
Stolz, S.; Scherer, M.; Mankel, E.; Lovrincic, R.; Schinke, J.; Kowalsky, W.; Jaegermann, W.; Lemmer, U.; Mechau, N.; Hernandez-Sosa, G.
2014. ACS Applied Materials and Interfaces, 6 (9), 6616–6622. doi:10.1021/am500287y

Design rules for semi-transparent organic tandem solar cells for window integration
Mescher, J.; Kettlitz, S. W.; Christ, N.; Klein, M. F. G.; Puetz, A.; Mertens, A.; Colsmann, A.; Lemmer, U.
2014. Organic Electronics: physics, materials, applications, 15 (7), 1476–1480. doi:10.1016/j.orgel.2014.04.011

Enhanced Electron Injection into Inverted Polymer Light-Emitting Diodes by Combined Solution-Processed Zinc Oxide/Polyethylenimine Interlayers
Höfle, S.; Schienle, A.; Bruns, M.; Lemmer, U.; Colsmann, A.
2014. Advanced materials, 26 (17), 2750–2754. doi:10.1002/adma.201304666

Optical transmission measurements for in-line monitoring of turbid oil-water emulsions
Metz, P.; Dopf, K.; Aichholz, M.; Riedel, B.; Lemmer, U.; Freudig, B.; Zimmermann, C.; Gerken, M.
2014. Optical sensing and detection III, Brussels, B., 14 - 17 April 2014. F. Berghmans, 91410J, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2049396

Particle detection from spatially modulated fluorescence signals
Kettlitz, S. W.; Moosmann, C.; Valouch, S.; Lemmer, U.
2014. Biophotonics: photonic solutions for better health care IV, Brussels, B., 14 - 17 April 2014. Ed.: J. Popp, 91291B, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2052169

Fluorescence particle detection using microfluidics and planar optoelectronic elements
Kettlitz, S. W.; Moosmann, C.; Valouch, S.; Lemmer, U.
2014. Biophotonics: photonic solutions for better health care IV, Brussels, B., 14 - 17 April 2014. Ed.: J. Popp, 91293W, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2052140

Superresolution optical fluctuation imaging (SOFI) aided nanomanipulation using AFM for novel artificial arrangements of chemically functionalized colloidal quantum dots and plasmonic structures
Dopf, K.; Heunisch, S.; Schwab, P.; Moosmann, C.; Habermehl, A.; Lemmer, U.; Eisler, H.-J.
2014. Nanophotonics V, Brussels, B., 13. - 17. April 2014. Ed.: D. Andrews, 91260N, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2051277

Organic semiconductor distributed feedback laser as excitation source in Raman spectroscopy using free-beam and fibre coupling
Liu, X.; Lebedkin, S.; Mappes, T.; Köber, S.; Koos, C.; Kappes, M.; Lemmer, U.
2014. Organic photonics VI, Brussels, B., 15 - 16 April 2014. Ed.: B. Rand, 91370Y, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2051645

The Compromises of Printing Organic Electronics: A Case Study of Gravure-Printed Light-Emitting Electrochemical Cells
Hernandez-Sosa, G.; Tekoglu, S.; Stolz, S.; Eckstein, R.; Teusch, C.; Trapp, J.; Lemmer, U.; Hamburger, M.; Mechau, N.
2014. Advanced Materials, 26 (20), 3235–3240. doi:10.1002/adma.201305541

Aerosol jet printed top grids for organic optoelectronic devices
Eckstein, R.; Hernandez-Sosa, G.; Lemmer, U.; Mechau, N.
2014. Organic electronics : materials, physics, chemistry, applications, 15 (9), 2135–2140. doi:10.1016/j.orgel.2014.05.031

Efficiency of exciton dissociation at internal organic interfaces beyond harmonic approximation
Wiemer, M.; Koch, M.; Lemmer, U.; Pevtsov, A. B.; Baranovskii, S. D.
2014. Organic electronics : materials, physics, chemistry, applications, 15 (10), 2461–2467. doi:10.1016/j.orgel.2014.07.025

Dipole emission in stratified media with multiple spherical scatterers: Enhanced outcoupling from OLEDs
Egel, A.; Lemmer, U.
2014. Journal of Quantitative Spectroscopy and Radiative Transfer, 148 (11), 165–176. doi:10.1016/j.jqsrt.2014.06.022

Photonics: general discussion
Higgins, S.; Torsi, L.; Whitworth, G.; Laurand, N.; Zhang, S.; Samuel, I.; Ebenhoch, B.; Wudl, F.; Frey, G.; Bucinskas, A.; Inigo, J.; Perepichka, D.; Lemmer, U.; Skabara, P.; Ottosson, H.; Bradley, D.; McCulloch, I.; Bruckner, R.; Zysman-Colman, E.; Sasaki, T.; Fraboni, B.
2014. Faraday Discussions, 174, 235–253. doi:10.1039/C4FD90047B

Printing PPEs: Fundamental Structure - Property Relationships
Markl, F.; Braun, I.; Smarsly, E.; Lemmer, U.; Mechau, N.; Hernandez-Sosa, G.; Bunz, U. H. F.
2014. ACS Macro Letters, 3 (8), 788–790. doi:10.1021/mz500340t

Solution Processed, White Emitting Tandem Organic Light-Emitting Diodes with Inverted Device Architecture
Höfle, S.; Schienle, A.; Bernhard, C.; Bruns, M.; Lemmer, U.; Colsmann, A.
2014. Advanced materials, 26 (30), 5155–5159. doi:10.1002/adma.201400332

Impact of processing on the chemical and electronic properties of phenyl-C61-butyric acid methyl ester
Maibach, J.; Adermann, T.; Glaser, T.; Eckstein, R.; Mankel, E.; Pucci, A.; Müllen, K.; Lemmer, U.; Hamburger, M.; Mayer, T.; Jaegermann, W.
2014. Journal of materials chemistry / C, 2 (37), 7934–7942. doi:10.1039/C4TC00769G

Influence of the Emission Layer Thickness on the Optoelectronic Properties of Solution Processed Organic Light-Emitting Diodes
Höfle, S.; Lutz, T.; Egel, A.; Nickel, F.; Kettlitz, S. W.; Gomard, G.; Lemmer, U.; Colsmann, A.
2014. ACS photonics, 1 (10), 968–973. doi:10.1021/ph500186m

Processing Follows Function: Pushing the Formation of Self-Assembled Monolayers to High-Throughput Compatible Time Scales
Alt, M.; Schinke, J.; Hillebrandt, S.; Hänsel, M.; Hernandez-Sosa, G.; Mechau, N.; Glaser, T.; Mankel, E.; Hamburger, M.; Deing, K.; Jaegermann, W.; Pucci, A.; Kowalsky, W.; Lemmer, U.; Lovrincic, R.
2014. ACS Applied Materials and Interfaces, 6 (22), 20234–20241. doi:10.1021/am5057689

Photocurrent imaging of semiconducting carbon nanotube devices with local mirrors
Alam, A.; Flavel, B. S.; Dehm, S.; Lemmer, U.; Krupke, R.
2014. Physica Status Solidi / B, 251 (12), 2471–2474. doi:10.1002/pssb.201451272

Synthesis and application of photolithographically patternable deep blue emitting poly(3,6-Dimethoxy-9,9-dialkylsilafluorene)s
McDowell, J. J.; Maier-Flaig, F.; Wolf, T. J. A.; Unterreiner, A.-N.; Lemmer, U.; Ozin, G.
2014. ACS Applied Materials and Interfaces, 6 (1), 83–93. doi:10.1021/am4025406

Organic semiconductor distributed feedback laser pixels for lab-on-a-chip applications fabricated by laser-assisted replication
Liu, X.; Prinz, S.; Besser, H.; Pfleging, W.; Wissmann, M.; Vannahme, C.; Guttmann, M.; Mappes, T.; Koeber, S.; Koos, C.; Lemmer, U.
2014. Faraday discussions, 174 (Sept), 153–164. doi:10.1039/C4FD00077C

Suppressing molecular aggregation in solution processed small molecule organic light emitting diodes
Höfle, S.; Pfaff, M.; Do, H.; Bernhard, C.; Gerthsen, D.; Lemmer, U.; Colsmann, A.
2014. Organic Electronics: physics, materials, applications, 15 (1), 337–341. doi:10.1016/j.orgel.2013.11.015

Surface-enhanced Raman spectroscopy (SERS) using nanopillar arrays as functional substrates and an organic semiconductor DFB laser as excitation source
Liu, X.; Lebedkin, S.; Pfleging, W.; Besser, H.; Wissmann, M.; Nazarenko, I.; Mappes, T.; Koeber, S.; Koos, C.; Kappes, M.; Lemmer, U.
2014. Laser Science to Photonic Applications (CLEO 2014), San Jose, Calif., June 8-13, 2014

3D replication of functional blue morpho butterfly nanostructures utilizing laser interference lithography
Siddique, R. H.; Abrar, F.; Hünig, R.; Diewald, S.; Leuthold, J.; Lemmer, U.; Hölscher, H.
2014. IONS-15, Ankara, TR, July 2-6, 2014

Solid state and liquid core: Integrating dye lasers for lab-on-a-chip applications
Wienhold, T.; Großmann, T.; Bog, U.; Liu, X.; Klinkhammer, S.; Vannahme, C.; Beck, T.; Laue, T.; Köber, S.; Koos, C.; Hirtz, M.; Kristensen, A.; Lemmer, U.; Kalt, H.; Mappes, T.
2014. 4th International Conference on Optofluidics, Guangzhou, China, August 28-30, 2014

Superresolution optical fluctuation imaging (SOFI) aided nanomanipulation using AFM for novel artificial arrangements of chemically functionalized colloidal quantum dots and plasmonic structures
Dopf, K.; Heunisch, S.; Schwab, P.; Moosmann, C.; Habermehl, A.; Lemmer, U.; Eisler, H. J.
2014. Photonics Europe, Bruxelles, B, April 14-17, 2014

Particle detection from spatially modulated fluorescence signals
Kettlitz, S. W.; Moosmann, C.; Valouch, S.; Lemmer, U.
2014. Photonics Europe, Bruxelles, B, April 14-17, 2014

Fluorescence particle detection using microfluidics and planar optoelectronic elements
Kettlitz, S. W.; Moosmann, C.; Valouch, S.; Lemmer, U.
2014. Photonics Europe, Bruxelles, B, April 14-17, 2014

RC-constant in organic photodiodes comprising electrodes with a significant sheet resistance
Mescher, J.; Kettlitz, S. W.; Egel, A.; Moosmann, C.; Christ, N. S.; Valouch, S.; Lemmer, U.
2014. IEEE Photonics Technology Letters, 26 (6), 579–582. doi:10.1109/LPT.2014.2298918

2013

Extracting Substrate Modes from Flexible OLEDs
Egel, A.; Bocksrocker, T.; Lemmer, U.
2013. Renewable Energy and the Environment Congress. Solid-State and Organic Lighting, SOLED 2013, Tucson, AZ, November 3-7, 2013, Optica Publishing Group (OSA). doi:10.1364/SOLED.2013.DT2E.3

Solution-processed electrodes for efficient hybrid copper indium gallium diselenide thin film solar cells
Reinhard, M.; Eckstein, R.; Sonntag, P.; Burkert, L.; Dimmler, B.; Lemmer, U.; Colsmann, A.
2013. 39th IEEE Photovoltaic Specialists Conference, PVSC 2013, Tampa, FL, United States, 16 - 21 June 2013, 3226–3228, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2013.6745139

Tungsten oxide buffer layers fabricated in an inert sol-gel process at room-temperature for blue organic light-emitting diodes
Höfle, S.; Bruns, M.; Strässle, S.; Feldmann, C.; Lemmer, U.; Colsmann, A.
2013. Advanced materials, 25 (30), 4113–4116. doi:10.1002/adma.201301627

Highly efficient fully flexible indium tin oxide free organic light emitting diodes fabricated directly on barrier-foil
Bocksrocker, T.; Hülsmann, N.; Eschenbaum, C.; Pargner, A.; Höfle, S.; Maier-Flaig, F.; Lemmer, U.
2013. Thin Solid Films, 542, 306–309. doi:10.1016/j.tsf.2013.06.090

N-Fused quinoxalines and benzoquinoxalines as attractive emitters for organic light emitting diodes
Lindner, B. D.; Zhang, Y.; Höfle, S.; Berger, N.; Teusch, C.; Jesper, M.; Hardcastle, K. I.; Qian, X.; Lemmer, U.; Colsmann, A.; Bunz, U. H. F.; Hamburger, M.
2013. Journal of Materials Chemistry C, 1 (36), 5718–5724. doi:10.1039/c3tc30828f

Molecular construction kit for tuning solubility, stability and luminescence properties: Heteroleptic MePyrPHOS-copper iodide-complexes and their application in organic light-emitting diodes
Volz, D.; Zink, D. M.; Bocksrocker, T.; Friedrichs, J.; Nieger, M.; Baumann, T.; Lemmer, U.; Bräse, S.
2013. Chemistry of materials, 25 (17), 3414–3426. doi:10.1021/cm4010807

Preparation of near-infrared absorbing composites comprised of conjugated macroligands on the surface of PbS nanoparticles
Zhang, J.; Bahrig, L.; Puetz, A.; Kanelidis, I.; Lenkeit, D.; Pelz, S.; Hickey, S. G.; Klein, M. F. G.; Colsmann, A.; Lemmer, U.; Eychmüller, A.; Holder, E.
2013. Polymer (United Kingdom), 54 (21), 5525–5533. doi:10.1016/j.polymer.2013.08.038

Additiveinfluss auf die Strukturbildung in Polymer-Fulleren-Gemischen für Polymersolarzellen
Buss, F.; Colsmann, A.; Lemmer, U.; Barrena, E.; Scharfer, P.; Schabel, W.
2013. Chemie - Ingenieur - Technik, 85 (9), 1457. doi:10.1002/cite.201250720

Synthesis and characterization of star-shaped donor-acceptor-donor structures
Pelz, S.; Zhang, J.; Kanelidis, I.; Klink, D.; Hyzak, L.; Wulf, V.; Schmitz, O. J.; Gasse, J.-C.; Frahm, R.; Pütz, A.; Colsmann, A.; Lemmer, U.; Holder, E.
2013. European Journal of Organic Chemistry, (22), 4761–4769. doi:10.1002/ejoc.201300357

TIPS-tetracene- and TIPS-pentacene-annulated poly(norbornadiene)s: Synthesis and properties
Porz, M.; Paulus, F.; Höfle, S.; Lutz, T.; Lemmer, U.; Colsmann, A.; Bunz, U. H. F.
2013. Macromolecular Rapid Communications, 34 (20), 1611–1617. doi:10.1002/marc.201300557

Monolithic hybrid tandem solar cells comprising copper indium gallium diselenide and organic subcells
Reinhard, M.; Sonntag, P.; Eckstein, R.; Bürkert, L.; Bauer, A.; Dimmler, B.; Lemmer, U.; Colsmann, A.
2013. Applied Physics Letters, 103 (14). doi:10.1063/1.4824017

Three-dimensional reciprocal space profile of an individual nanocrystallite inside a thin-film solar cell absorber layer
Slobodskyy, T.; Schroth, P.; Minkevich, A.; Grigoriev, D.; Fohtung, E.; Riotte, M.; Baumbach, T.; Powalla, M.; Lemmer, U.; Slobodskyy, A.
2013. Journal of Physics D: Applied Physics, 46 (47), 475104/1–5. doi:10.1088/0022-3727/46/47/475104

Gravure printed flexible small-molecule organic light emitting diodes
Tekoglu, S.; Hernandez-Sosa, G.; Kluge, E.; Lemmer, U.; Mechau, N.
2013. Organic Electronics: physics, materials, applications, 14 (12), 3493–3499. doi:10.1016/j.orgel.2013.09.027

Pump spot size dependent lasing threshold in organic semiconductor DFB lasers fabricated via nanograting transfer
Liu, X.; Klinkhammer, S.; Wang, Z.; Wienhold, T.; Vannahme, C.; Jakobs, P.-J.; Bacher, A.; Muslija, A.; Mappes, T.; Lemmer, U.
2013. Optics express, 21 (23), 27697–27706. doi:10.1364/OE.21.027697

Organic semiconductor distributed feedback (DFB) laser as excitation source in Raman spectroscopy
Liu, X.; Stefanou, P.; Wang, B.; Woggon, T.; Mappes, T.; Lemmer, U.
2013. Optics Express, 21 (23), 28941–28947. doi:10.1364/oe.21.028941

Hybrid lithography: Combining UV-exposure and two photon direct laser writing
Eschenbaum, C.; Großmann, D.; Dopf, K.; Kettlitz, S.; Bocksrocker, T.; Valouch, S.; Lemmer, U.
2013. Optics Express, 21 (24), 29921–29926. doi:10.1364/OE.21.029921

Micro-spherically textured organic light emitting diodes: A simple way towards highly increased light extraction
Bocksrocker, T.; Hoffmann, J.; Eschenbaum, C.; Pargner, A.; Preinfalk, J.; Maier-Flaig, F.; Lemmer, U.
2013. Organic Electronics, 14 (1), 396–401. doi:10.1016/j.orgel.2012.10.036

Material-based three-dimensional imaging with nanostructured surfaces
Nazirizadeh, Y.; Reverey, J.; Geyer, U.; Lemmer, U.; Selhuber-Unkel, C.; Gerken, M.
2013. Applied Physics Letters, 102 (1), 011116. doi:10.1063/1.4773875

Solution-processed polymer-silver nanowire top electrodes for inverted semi-transparent solar cells
Reinhard, M.; Eckstein, R.; Slobodskyy, A.; Lemmer, U.; Colsmann, A.
2013. Organic Electronics, 14 (01/2013), 273–277. doi:10.1016/j.orgel.2012.10.039

Inverted Semi-transparent Polymer Solar Cells with Transparency Color Rendering Indices approaching 100
Czolk, J.; Pütz, A.; Kutsarov, D.; Reinhard, M.; Lemmer, U.; Colsmann, A.
2013. Advanced Energy Materials, 3 (3), 386–390. doi:10.1002/aenm.201200532

Multicolor silicon light-emitting diodes (SiLEDs)
Maier-Flaig, F.; Rinck, J.; Stephan, M.; Bocksrocker, T.; Bruns, M.; Kübel, C.; Powell, A. K.; Ozin, G. A.; Lemmer, U.
2013. Nano letters, 13 (2), 475–480. doi:10.1021/nl3038689

Cadmium-free copper indium gallium diselenide hybrid solar cells comprising a 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole buffer layer
Reinhard, M.; Simon, C.; Kuhn, J.; Bürkert, L.; Cemernjak, M.; Dimmler, B.; Lemmer, U.; Colsmann, A.
2013. Applied Physics Letters, 102 (6), 063304. doi:10.1063/1.4792507

Intensity dependent but temperature independent charge carrier generation in organic photodiodes and solar cells
Christ, N.; Kettzlitz, S. W.; Valouch, S.; Mescher, J.; Nintz, M.; Lemmer, U.
2013. Organic Electronics, 14 (3), 973–978. doi:10.1016/j.orgel.2013.01.011

Investigating the influences of the precise manufactured shape of dipole nanoantennas on their optical properties
Moosmann, C.; Sigurdsson, G. S.; Wissert, M. D.; Dopf, K.; Lemmer, U.; Eisler, H.-J.
2013. Optic Express, 21 (1), 594–604. doi:10.1364/OE.21.000594

Cross sections of operating Cu(In,Ga)Se2 thin-film solar cells under defined white light illumination analyzed by Kelvin probe force microscopy
Zhang, Z.; Hetterich, M.; Lemmer, U.; Powalla, M.; Hoelscher, H.
2013. Applied physics letters, 102 (2), 023903/1–6. doi:10.1063/1.4775679

Eliminating RC-effects in transient photocurrent measurements on organic photodiodes
Kettlitz, S.; Mescher, J.; Christ, N.; Nintz, M.; Valouch, S.; Colsmann, A.; Lemmer, U.
2013. IEEE Photonics Technology Letters (PTL), 25 (7), 682–685. doi:10.1109/LPT.2013.2247036

Rheological and Drying Considerations for Uniformly Gravure-Printed Layers: Towards Large-Area Flexible Organic Light-Emitting Diodes
Hernandez-Sosa, G.; Bornemann, N.; Ringle, I.; Agari, M.; Dörsam, E. r.; Mechau, N.; Lemmer, U.
2013. Advanced Functional Materials, 23 (25), 3164–3171. doi:10.1002/adfm.201202862

Statistics of Particle Detection From Single-Channel Fluorescence Signals for Flow Cytometric Applications
Kettlitz, S. W.; Valouch, S.; Lemmer, U.
2013. IEEE Transactions on Instrumentation and Measurement, 62 (7), 1960–1971. doi:10.1109/TIM.2013.2248293

Looking Inside a Working SiLED
Maier-Flaig, F.; Kübel, C.; Rinck, J.; Bocksrocker, T.; Scherer, T.; Prang, R.; Powell, A. K.; Ozin, G. A.; Lemmer, U.
2013. Nano letters, 13, 3539–3545. doi:10.1021/nl400975u

Single-mode biological distributed feedback laser
Vannahme, C.; Maier-Flaig, F.; Lemmer, U.; Kristensen, A.
2013. Lab on a Chip, 13, 2675–2678. doi:10.1039/C3LC50140J

The role of nanotubes in carbon nanotube-silicon solar cells
Tune, D. D.; Hennrich, F.; Dehm, S.; Klein, M. F. G.; Glaser, K.; Colsmann, A.; Shapter, J. G.; Lemmer, U.; Kappes, M. M.; Krupke, R.; Flavel, B. S.
2013. Advanced Energy Materials, 3 (8), 1091–1097. doi:10.1002/aenm.201200949

Carbazole-Phenylbenzotriazole Copolymers as Absorber Material in Organic Solar Cells
Klein, M. F. G.; Pasker, F. M.; Kowarik, S.; Landerer, D.; Pfaff, M.; Isen, M.; Gerthsen, D.; Lemmer, U.; Höger, S.; Colsmann, A.
2013. Macromolecules, 46 (10), 3870–3878. doi:10.1021/ma400440q

Molybdenum oxide anode buffer layers for solution processed, blue phosphorescent small molecule organic light emitting diodes
Höfle, S.; Do, H.; Mankel, E.; Pfaff, M.; Zhang, Z.; Bahro, D.; Mayer, T.; Jaegermann, W.; Gerthsen, D.; Feldmann, C.; Lemmer, U.; Colsmann, A.
2013. Organic electronics, 14 (7), 1820–1824. doi:10.1016/j.orgel.2013.04.017

Dispersive transport in the temperature dependent transient photoresponse of organic photodiodes and solar cells
Christ, N.; Kettlitz, S.; Mescher, J.; Valouch, S.; Lemmer, U.
2013. Journal of Applied Physics, 113, 234503–234503. doi:10.1063/1.4810897

The role of the polymer solid electrolyte molecular weight in light-emitting electrochemical cells
Hernandez-Sosa, G.; Eckstein, R.; Tekoglu, S.; Becker, T.; Mathies, F.; Lemmer, U.; Mechau, N.
2013. Organic Electronics, 14 (9), 2223–2227. doi:10.1016/j.orgel.2013.05.040

Influence of the Ga Content on the Optical and Electrical Properties of CuIn1-xGaxSe2 Thin-Film Solar Cells
Zhang, Z.; Witte, W.; Kiowski, O.; Lemmer, U.; Powalla, M.; Hölscher, H.
2013. 2012 IEEE 38th Photovoltaic Specialists Conference (PVSC), June 3-8 2012, Austin, Texas. Volume 2, 1–5, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC-Vol2.2012.6656798

Semitransparente organische Solarzellen mit sehr guter Farbneutralität
Czolk, J.; Pütz, A.; Vogeler, H.; Lemmer, U.; Colsmann, A.
2013. Chancen der Energiewende : wissenschaftliche Beiträge des KIT zur 1. Jahrestagung des KIT-Zentrums Energie, 19.06.2012. Hrsg.: W. Breh, 125–130, KIT Scientific Publishing

2012

Efficiency Enhancement of Organic and Thin-Film Silicon Solar Cells with Photochemical Upconversion
Schulze, T. F.; Czolk, J.; Cheng, Y.-Y.; Fückel, B.; MacQueen, R. W.; Khoury, T.; Crossley, M. J.; Stannowski, B.; Lips, K.; Lemmer, U.; Colsmann, A.; Schmidt, T. W.
2012. The journal of physical chemistry <Washington, DC> / C, 116 (43), 22794–22801. doi:10.1021/jp309636m

Solution processable, precursor based zinc oxide buffer layers for 4.5% efficient organic tandem solar cells
Puetz, A.; Steiner, F.; Mescher, J.; Reinhard, M.; Christ, N.; Kutsarov, D.; Kalt, H.; Lemmer, U.; Colsmann, A.
2012. Organic electronics, 13 (11), 2696–2701. doi:10.1016/j.orgel.2012.07.043

Zinc oxide nanorod arrays hydrothermally grown on a highly conductive polymer for inverted polymer solar cells
Reinhard, M.; Conradt, J.; Braun, M.; Colsmann, A.; Lemmer, U.; Kalt, H.
2012. Synthetic metals, 162 (17-18), 1582–1586. doi:10.1016/j.synthmet.2012.06.018

Photophysics of organically-capped silicon nanocrystals : A closer look into silicon nanocrystal luminescence using low temperature transient spectroscopy
Maier-Flaig, F.; Henderson, E. J.; Valouch, S.; Klinkhammer, S.; Kübel, C.; Ozin, G. A.; Lemmer, U.
2012. Chemical physics, 405, 175–180. doi:10.1016/j.chemphys.2012.07.009

Computational investigation of silicon thin-film solar cells with grating structures fabricated by holographic lithography
Theuring, M.; Lacombe, J.; Chakanga, K.; Hünig, R.; Huska, K.; Vehse, M.; Maydell, K. von; Lemmer, U.; Agert, C.
2012. SPIE Photonics Europe - Photonics for Solar Energy Systems IV, Brussels, Belgium, 16-19 April 2012. Ed.: R. Wehrspohn, 84381Q, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.921799

Novel nano- and micro-textures for highly efficient outcoupling in white organic light emitting diodes
Bocksrocker, T.; Eschenbaum, C.; Preinfalk, J. B.; Hoffmann, J.; Asche-Tauscher, J.; Maier-Flaig, F.; Lemmer, U.
2012. Renewable Energy and the Environment Optics and Photonics Congress - Solid-State and Organic Lighting (SOLED), Eindhoven, Netherlands, 11–14 November 2012, LM3A.4, Optica Publishing Group (OSA). doi:10.1364/SOLED.2012.LM3A.4

Nanomorphology of P3HT:PCBM-based Organic Solar Cells Analyzed by Low-Energy Scanning Transmission Electron Microscopy
Pfaff, M.; Müller, E.; Müller, P.; Gerthsen, D.; Klein, M. G.; Colsmann, A.; Lemmer, U.
2012. Microscopy and microanalysis, 18 (S2), 1234–1235. doi:10.1017/S1431927612008021

Direct fabrication of PDMS waveguides via lowcost DUV irradiation for optical sensing
Valouch, S.; Sieber, H.; Kettlitz, S.; Eschenbaum, C.; Hollenbach, U.; Lemmer, U.
2012. Optics express, 20 (27), 28855–28861. doi:10.1364/OE.20.028855

Nanomorphology of P3HT:PCBM-based Organic Solar Cells Analyzed by Low-Energy Scanning Transmission Electron Microscopy
Pfaff, M.; Klein, M. G.; Müller, E.; Müller, P.; Colsmann, A.; Lemmer, U.; Gerthsen, D.
2012. Microscopy and Microanalysis, 18 (6), 1380–1388. doi:10.1017/S143192761201344X

Novel nano- and micro-textures for highly efficient outcoupling in white organic light emitting diodes
Bocksrocker, T.; Eschenbaum, C.; Preinfalk, J. B.; Hoffmann, J.; Asche-Tauscher, J.; Maier-Flaig, F.; Lemmer, U.
2012. OSA Technical Digest: Renewable Energy and the Environment Optics and Photonics Congress, Eindhoven, Netherlands, November 11-15, 2012, paper LM3A.4, Optica Publishing Group (OSA)

Investigation of non-halogenated solvent mixtures for high throughput fabrication of polymer-fullerene solar cells
Schmidt-Hansberg, B.; Sanyal, M.; Grossiord, N.; Galagan, Y.; Baunach, M.; Klein, M.; Colsmann, A.; Scharfer, P.; Lemmer, U.; Dosch, H.; Michels, J.; Barrena, E.; Schabel, W.
2012. Solar Energy Materials and Solar Cells, 96, 195–201. doi:10.1016/j.solmat.2011.09.059

Poly(3-hexylselenophene) solar cells : Correlating the optoelectronic device performance and nanomorphology imaged by low-energy scanning Transmission electron microscopy
Klein, M. F. G.; Pfaff, M.; Müller, E.; Czolk, J.; Reinhard, M.; Valouch, S.; Lemmer, U.; Colsmann, A.; Gerthsen, D.
2012. Journal of polymer science / B, 50 (3), 198–206. doi:10.1002/polb.22394

Flexible planar microfluidic chip employing a light emitting diode and a PIN-photodiode for portable flow cytometers
Kettlitz, S. W.; Valouch, S.; Sittel, W.; Lemmer, U.
2012. Lab on a Chip, 12 (1), 197–203. doi:10.1039/C1LC20672A

Inverted semi-transparent organic solar cells with spray coated, surfactant free polymer top-electrodes
Colsmann, A.; Reinhard, M.; Kwon, T.-H.; Kayser, C.; Nickel, F.; Czolk, J.; Lemmer, U.; Clark, N.; Jasieniak, J.; Holmes, A. B.; Jones, D.
2012. Solar Energy Materials and Solar Cells, 98, 118–123. doi:10.1016/j.solmat.2011.10.016

Size-Dependent Absolute Quantum Yields for Size-Separated Colloidally-Stable Silicon Nanocrystals
Mastronardi, M. L.; Maier-Flaig, F.; Faulkner, D. O.; Henderson, E. J.; Kübel, C.; Lemmer, U.; Ozin, G. A.
2012. Nano letters, 12 (1), 337–342. doi:10.1021/nl2036194

Efficient waveguide mode extraction in white organic light emitting diodes using ITO-anodes with integrated MgF2-columns
Bocksrocker, T.; Maier-Flaig, F.; Eschenbaum, C.; Lemmer, U.
2012. Optics Express, 20 (6), 6170–6174. doi:10.1364/OE.20.006170

Thickness-Dependent Transient Photocurrent Response of Organic Photodiodes
Valouch, S.; Nintz, M.; Kettlitz, S. W.; Christ, N. S.; Lemmer, U.
2012. IEEE Photonics Technology Letters, 24 (7), 596–598. doi:10.1109/LPT.2012.2184276

Design of plasmonic grating structures towards optimum signal discrimination for biosensing applications
Bog, U.; Huska, K.; Maerkle, F.; Nesterov-Mueller, A.; Lemmer, U.; Mappes, T.
2012. Optics express, 20 (10), 11357–11369. doi:10.1364/OE.20.011357

Reevaluation of the beneficial effect of Cu(In,Ga)Se₂ grain boundaries using Kelvin probe force microscopy
Zhang, Z.; Tang, X.; Kiowski, O.; Hetterich, M.; Lemmer, U.; Powalla, M.; Hölscher, H.
2012. Applied Physics Letters, 100 (20), 203903/1–4. doi:10.1063/1.4714905

Spatial mapping of photocurrents in organic solar cells comprising wedge-shaped absorber layers for an efficient material screening
Nickel, F.; Sprau, C.; Klein, M. F. G.; Kapetana, P.; Christ, N.; Liu, X.; Klinkhammer, S.; Lemmer, U.; Colsmann, A.
2012. Solar Energy Materials and Solar Cells, 104, 18–22. doi:10.1016/j.solmat.2012.04.026

Photonic crystal slabs for surface contrast enhancement in microscopy of transparent objects
Nazirizadeh, Y.; Becker, T.; Reverey, J.; Selhuber-Unkel, C.; Rapoport, D. H.; Lemmer, U.; Gerken, M.
2012. Optics Express, 20 (13), 14451–14459. doi:10.1364/OE.20.014451

Oligomers Comprising 2-Phenyl-2H-Benzotriazole Building Blocks for Solution Processible Organic Photovoltaic Devices
Klein, M. F. G.; Pasker, F.; Wettach, H.; Gadaczek, I.; Bredow, T.; Zilkens, P.; Voehringer, P.; Lemmer, U.; Höger, S.; Colsmann, A.
2012. The journal of physical chemistry <Washington, DC> / C, 116 (31), 16358–16364. doi:10.1021/jp3039384

Ink-Jet-Printed Organic Semiconductor Distributed Feedback Laser
Liu, X.; Klinkhammer, S.; Sudau, K.; Mechau, N.; Vannahme, C.; Kascke, J.; Mappes, T.; Wegener, M.; Lemmer, U.
2012. Applied physics express, 5, Art.Nr. 072101. doi:10.1143/APEX.5.072101

Solution processed sodium chloride interlayers for efficient electron extraction from polymer solar cells
Nickel, F.; Reinhard, M.; Zhang, Z.; Pütz, A.; Kettlitz, S. W.; Lemmer, U.; Colsmann, A.
2012. Applied Physics Letters, 101 (5), 053309/1–3. doi:10.1063/1.4742161

Influence of the spatial photocarrier generation profile on the performance of organic solar cells
Mescher, J.; Christ, N.; Kettlitz, S. W.; Colsmann, A.; Lemmer, U.
2012. Applied Physics Letters, 101 (7), 073301/1–4. doi:10.1063/1.4745601

Solution processed small molecule organic interfacial layers for low dark current polymer photodiodes
Valouch, S.; Hönes, C.; Kettlitz, S. W.; Christ, N.; Do, H.; Klein, M. F. G.; Kalt, H.; Colsmann, A.; Lemmer, U.
2012. Organic Electronics, 13 (11), 2727–2732. doi:10.1016/j.orgel.2012.07.044

Structure Formation in Low-Bandgap Polymer: Fullerene Solar Cell Blends in the Course of Solvent Evaporation
Schmidt-Hansberg, B.; Klein, M. F. G.; Sanyal, M.; Buss, F.; Medeiros, G. Q. G. de; Munuera, C.; Vorobiev, A.; Colsmann, A.; P. Scharfer, P.; Lemmer, U.; Barrena, E.; Schabel, W.
2012. Macromolecules, 45 (19), 7948–7955. doi:10.1021/ma300945k

White organic light emitting diodes with enhanced internal and external outcoupling for ultra-efficient light extraction and Lambertian emission
Bocksrocker, T.; Preinfalk, J. B.; Asche-Tauscher, J.; Pargner, A.; Eschenbaum, C.; Maier-Flaig, F.; Lemmer, U.
2012. Optics Express, 20 (23), A932-A940. doi:10.1364/OE.20.00A932

2011

Photovoltaic response to structural modifications on a series of conjugated polymers based on 2-aryl-2H-benzotriazoles
Pasker, F. M.; Klein, M. F. G.; Sanyal, M.; Barrena, E.; Lemmer, U.; Colsmann, A.; Höger, S.
2011. Journal of polymer science / A, 49 (23), 5001–5011. doi:10.1002/pola.24959

Colloidally Stable Silicon Nanocrystals with Near-Infrared Photoluminescence for Biological Fluorescence Imaging
Henderson, E. J.; Shuhendler, A. J.; Prasad, P.; Baumann, V.; Maier-Flaig, F.; Faulkner, D. O.; Lemmer, U.; Wu, X. Y.; Ozin, G. A.
2011. Small, 7 (17), 2507–2516. doi:10.1002/smll.201100845

Nanosecond response organic photodiodes: From device physics towards biosensor applications
Valouch, S.; Kettlitz, S. W.; Christ, N.; Züfle, S.; Ögün, C. M.; Nintz, M.; Lemmer, U.
2011. MRS online proceedings library, 1358, mrss11–1358-mm06. doi:10.1557/opl.2011.1014

Temperature dependent photoresponse from colloidal PbS quantum dot sensitized inorganic/organic hybrid photodiodes
Pichler, S.; Rauch, T.; Seyrkammer, R.; Böberl, M.; Tedde, S. F.; Fürst, J.; Kovalenko, M. V.; Lemmer, U.; Hayden, O.; Heiss, W.
2011. Applied physics letters, 98 (5), 053304. doi:10.1063/1.3552678

Periodic nanostructuring for guided mode extraction in organic light-emitting diodes
Hauss, J.; Riedel, B.; Gleiss, S.; Geyer, U.; Lemmer, U.; Gerken, M.
2011. Journal of photonics for energy, 1 (1), Art.Nr. 011012. doi:10.1117/1.3544495

Tailored Highly Transparent Composite Hole-Injection Layer Consisting of Pedot:PSS and SiO2 Nanoparticles for Efficient Polymer Light-Emitting Diodes
Riedel, B.; Shen, Y.; Hauss, J.; Aichholz, M.; Tang, X.; Lemmer, U.; Gerken, M.
2011. Advanced Materials, 23 (6), 740–745. doi:10.1002/adma.201003490

Inverted organic solar cells comprising a solution-processed cesium fluoride interlayer
Reinhard, M.; Hanisch, J.; Zhang, Z.-H.; Ahlswede, E.; Colsmann, A.; Lemmer, U.
2011. Applied Physics Letters, 98 (5), 053303/1–3. doi:10.1063/1.3548860

Spatially resolved drying kinetics of multi-component solution cast films for organic electronics
Schmidt-Hansberg, B.; Baunach, M.; Krenn, J.; Walheim, S.; Lemmer, U.; Scharfer, P.; Schabel, W.
2011. Chemical Engineering and Processing: Process Intensification, 50 (5-6), 509–515. doi:10.1016/j.cep.2010.12.012

Gold nanoantenna resonance diagnostics via transversal particle plasmon luminescence
Wissert, M. D.; Moosmann, C.; IIin, K. S.; Siegel, M.; Lemmer, U.; Eisler, H.-J.
2011. Optics Express, 19 (4), 3686–3693. doi:10.1364/OE.19.003686

Lasing in dye-doped high-Q conical polymeric microcavities
Grossmann, T.; Schleede, S.; Hauser, M.; Christiansen, M. B.; Vannahme, C.; Eschenbaum, C.; Klinkhammer, S.; Beck, T.; Fuchs, J.; Nienhaus, G. U.; Lemmer, U.; Kristensen, A.; Mappes, T.; Kalt, H.
2011. Laser resonators and beam control XIII, San Francisco, California, United States, 23 - 25 January 2011. Ed.: A. V. Kudryashov, 79130 Y, Society of Photo-optical Instrumentation Engineers (SPIE)

Quantum dots as single-photon sources: Antibunching via two-photon excitation
Wissert, M. D.; Rudat, B.; Lemmer, U.; Eisler, H.-J.
2011. Physical Review B, 83 (11), 113304/1–4. doi:10.1103/PhysRevB.83.113304

Polymer light-emitting diodes with inorganic nanocomposite interlayers for efficiency enhancement
Riedel, B.; Hauss, J.; Shen, Y.; Aichholz, M.; Lemmer, U.; Gerken, M.
2011. Journal of Photonics for Energy, 1 (1), 011018. doi:10.1117/1.3569102

Nanograting transfer for light extraction in organic light-emitting devices
Wang, Z.; Hauss, J.; Vannahme, C.; Bog, U.; Klinkhammer, S.; Zhao, D.; Gerken, M.; Mappes, T.; Lemmer, U.
2011. Applied Physics Letters, 98 (14), 143105/1–3. doi:10.1063/1.3572336

In Situ X-Ray Study of Drying-Temperature Influence on the Structural Evolution of Bulk-Heterojunction Polymer-Fullerene Solar Cells Processed by Doctor-Blading
Sanyal, M.; Schmidt-Hansberg, B.; Klein, M. F. G.; Colsmann, A.; Munuera, C.; Vorobiev, A.; Lemmer, U.; Schabel, W.; Dosch, H.; Barrena, E.
2011. Advanced Energy Materials, 1 (3), 363–367. doi:10.1002/aenm.201100007

Effect of Photovoltaic Polymer/Fullerene Blend Composition Ratio on Microstructure Evolution during Film Solidification Investigated in Real Time by X-ray Diffraction
Sanyal, M.; Schmidt-Hansberg, B.; Klein, M. F. G.; Munuera, C.; Vorobiev, A.; Colsmann, A.; Scharfer, P.; Lemmer, U.; Schabel, W.; Dosch, H.; Barrena, B.
2011. Macromolecules, 44 (10), 3795–3800. doi:10.1021/ma2000338

Efficient Semi-Transparent Organic Solar Cells with Good Transparency Color Perception and Rendering Properties
Colsmann, A.; Pütz, A.; Bauer, A.; Hanisch, J.; Ahlswede, E.; Lemmer, U.
2011. Advanced Energy Materials, 1 (4), 599–603. doi:10.1002/aenm.201000089

Nanosecond response of organic solar cells and photodiodes: Role of trap states
Christ, N.; Kettlitz, S. W.; Züfle, S.; Valouch, S.; Lemmer, U.
2011. Physical Review B, 83 (19), 195211/1–5. doi:10.1103/PhysRevB.83.195211

Low-energy electron scattering in carbon-based materials analyzed by scanning transmission electron microscopy and its application to sample thickness determination
Pfaff, M.; Müller, E.; Klein, M. F. G.; Colsmann, A.; Lemmer, U.; Krzyzanek, V.; Reichelt, R.; Gerthsen, D.
2011. Journal of Microscopy, 243 (1), 31–39. doi:10.1111/j.1365-2818.2010.03475.x

On the interplay of waveguide modes and leaky modes in corrugated OLEDs
Hauss, J.; Bocksrocker, T.; Riedel, B.; Lemmer, U.; Gerken, M.
2011. Optics Express, 19 (S4), A851-A858. doi:10.1364/OE.19.00A851

Voltage-controlled tuning of an organic semiconductor distributed feedback laser using liquid crystals
Klinkhammer, S.; Heussner, N.; Huska, K.; Bocksrocker, T.; Geislhöringer, F.; Vannahme, C.; Mappes, T.; Lemmer, U.
2011. Applied Physics Letters, 99 (2), 023307/1–3. doi:10.1063/1.3610473

A dendronised polymer for bulk heterojunction solar cells
Yu, J.; Lee, K. H.; Zhang, Y.; Klein, M. F. G.; Colsmann, A.; Lemmer, U.; Burn, P. L.; Lo, S.-C.; Meredith, P.
2011. Polymer Chemistry, 2 (11), 2668–2673. doi:10.1039/c1py00301a

Electroluminescence from chirality-sorted (9,7)-semiconducting carbon nanotube devices
Pfeiffer, M. H. P.; Stürzl, N.; Marquardt, C. W.; Engel, M.; Dehm, S.; Hennrich, F.; Kappes, M. M.; Lemmer, U.; Krupke, R.
2011. Optics Express, 19 (23), A1184-A1189. doi:10.1364/OE.19.0A1184

Metallic Bragg-gratings for light management in organic light-emitting devices
Hauss, J.; Bocksrocker, T.; Riedel, B.; Geyer, U.; Lemmer, U.; Gerken, M.
2011. Applied physics reviews, 99 (10), 103303/1–3

Photophysical properties of fluorescently-labeled peptoids
Rudat, B.; Birtalan, E.; Vollrath, S. B. L.; Fritz, D.; Kölmel, D. K.; Nieger, M.; Schepers, U.; Müllen, K.; Eisler, H.-J.; Lemmer, U.; Bräse, S.
2011. European Journal of Medicinal Chemistry, 46 (9), 4457–4465. doi:10.1016/j.ejmech.2011.07.020

Preparation of Monodisperse Silicon Nanocrystals Using Density Gradient Ultracentrifugation
Mastronardi, M. L.; Hennrich, F.; Henderson, E. J.; Maier-Flaig, F.; Blum, C.; Reichenbach, J.; Lemmer, U.; Kübel, C.; Wang, D.; Kappes, M. M.; Ozin, G. A.
2011. Journal of the American Chemical Society, 133 (31), 11928–11931. doi:10.1021/ja204865t

Moving Through the Phase Diagram: Morphology Formation in Solution Cast Polymer-Fullerene-Blend Films for Organic Solar Cells
Schmidt-Hansberg, B.; Sanyal, M.; Klein, M. F. G.; Pfaff, M.; Schnabel, N.; Jaiser, S.; Vorobiev, A.; Müller, E.; Colsmann, A.; Scharfer, P.; Gerthsen, D.; Lemmer, U.; Barrena, E.; Schabel, W.
2011. ACS Nano, 5 (11), 8579–8590. doi:10.1021/nn2036279

Observations of PDDTT Subject to Thermal Treatment: Correlation between Performance and Order
Yuen, J. D.; Kumar, R.; Seifter, J.; Valouch, S.; Zakhidov, D.; Moses, D.; Lemmer, U.; Heeger, A. J.; Wudl, F.
2011. Journal of the American Chemical Society, 133 (49), 19602–19605. doi:10.1021/ja207312f

Analysis of untreated cross sections of cu(In,Ga)Se₂ thin-film solar cells with varying Ga content using Kelvin probe force microscopy
Zhang, Z.; Tang, X.; Lemmer, U.; Witte, W.; Kiowski, O.; Powalla, M.; Hölscher, H.
2011. Applied physics letters, 99, Art.Nr. 042111. doi:10.1063/1.3607954

Diode-Pumped Organic Semiconductor Microcone Laser
Klinkhammer, S.; Grossmann, T.; Lüll, K.; Hauser, M.; Vannahme, C.; Mappes, T.; Kalt, H.; Lemmer, U.
2011. IEEE photonics technology letters, 23 (8), 489–491. doi:10.1109/LPT.2011.2111417

Strongly confined, low-threshold laser modes in organic semiconductor microgoblets
Grossmann, T.; Klinkhammer, S.; Hauser, M.; Floess, D.; Beck, T.; Vannahme, C.; Mappes, T.; Lemmer, U.; Kalt, H.
2011. Optics Express, 19 (10), 10009–10016. doi:10.1364/OE.19.010009

Plastic lab-on-a-chip for fluorescence excitation with integrated organic semiconductor lasers
Vannahme, C.; Klinkhammer, S.; Lemmer, U.; Mappes, T.
2011. Optics Express, 19 (9), 8179–8186. doi:10.1364/OE.19.008179

2010

Improvement of SNSPD Detection Efficiency by Variation of NbN Chemical Composition
Rall, D.; Toussaint, J.; Hofherr, M.; Wünsch, S.; Ilin, K.; Semenov, A.; Hübers, H.-W.; Lemmer, U.; Siegel, M.
2010, Oktober. Tagung Kryoelektronische Bauelemente (KRYO 2010), Zeuthen, Deutschland, 3.–5. Oktober 2010

Low-speckle laser projection using farfield nonmodal emission of a broad-area vertical-cavity surface-emitting laser
Craggs, G. M. J.; Riechert, F.; Meuret, Y.; Thienpont, H.; Lemmer, U.; Verschaffelt, G.
2010. SPIE Photonics Europe, Brussels, Belgium, 12-16 April 2010. Ed.: K. Panajotov, 772020, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.854427

Investigation of Energy Relaxation Processes in ultra-thin Superconducting Films with Frequency Domain Measurements
Rall, D.; Probst, P.; Hofherr, M.; Wünsch, S.; Il’in, K.; Haindl, S.; Iida, K.; Lemmer, U.; Siegel, M.
2010. 3rd Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity (2010), Bad Liebenzell, Deutschland, 9.–11. Juni 2010

Methods to Enhance the Efficiency of Organic Light Emitting Devices
Riedel, B.; Hauss, J.; Geyer, U.; Lemmer, U.; Gerken, M.
2010. Proceedings of the 4th International Symposium Technologies for Polymer Electronics (TPE 10), Rudolstadt, 18. - 20. Mai 2010. Ed.: H.-K. Roth, 267–272, Universitäts-Verlag

Methods for Increasing the Efficiency of Organic Light Emitting Diodes
Riedel, B.; Hauss, J.; Geyer, U.; Lemmer, U.; Gerken, M.
2010. Solid-State and Organic Lighting 2010 (SOLED), Karlsruhe Germany, 21–24 June 2010, SOTuB2, Optica Publishing Group (OSA). doi:10.1364/SOLED.2010.SOTuB2

Periodic Nanostructures Fabricated by Laser Interference Lithography for Guided Mode Extraction in OLEDs
Hauss, J.; Riedel, B.; Bocksrocker, T.; Gleiss, S.; Huska, K.; Geyer, U.; Lemmer, U.; Gerken, M.
2010. Solid-State and Organic Lighting 2010 (SOLED) - [part of] Advanced Photonics and Renewable Energy, Karlsruhe, Germany, 21–24 June 2010, SOThB2/1–2, Optica Publishing Group (OSA). doi:10.1364/SOLED.2010.SOThB2

Optical spectroscopy with organic semiconductor lasers
Klinkhammer, S.; Woggon, T.; Vannahme, C.; Geyer, U.; Mappes, T.; Lemmer, U.
2010. SPIE Photonics Europe - Organic Photonics IV, Brussels, Belgium, 12 - 16 April 2010. Ed.: P. L. Heremans, 7722–53, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.854785

Integrated photonic lab-on-chip systems for biomedical applications
Mappes, T.; Vannahme, C.; Klinkhammer, S.; Bog, U.; Schelb, M.; Grossmann, T.; Hauser, M.; Kalt, H.; Lemmer, U.
2010. Micro-optics 2010, 12 - 16 April 2010, Brussels, Belgium. Ed.: H. Thienpont, 7716–26, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.858205

Highly integrated biophotonics towards all-organic lab-on-chip systems
Vannahme, C.; Klinkhammer, S.; Brinkmann, F.; Lenhert, S.; Grossmann, T.; Lemmer, U.; Mappes, T.
2010. SPIE Photonics Europe - Biophotonics: Photonic Solutions for Better Health Care II, Brussels, Belgium, 12 - 16 April 2010. Ed.: J. Popp, 77151H/1–10, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.856672

High Speed Fabrication of Toroidal Micro-Ring Resonators by Two Photon Direct Laser Writing
Eschenbaum, C.; Woggon, T.; Lemmer, U.
2010. Nonlinear Photonics (NP), Karlsruhe, Germany, 21–24 June 2010, NThB8/1–2, Optica Publishing Group (OSA). doi:10.1364/NP.2010.NThB8

Methods to Enhance the Efficiency of Organic Light Emitting Devices
Riedel, B.; Hauss, J.; Kaiser, I.; Guetlein, J.; Geyer, U.; Huska, K.; Lemmer, U.; Gerken, M.
2010. Proceedings of the 4th International Symposium Technologies for Polymer Electronics (TPE 10), Rudolstadt, Germany, 18. - 20. May 2010. Ed.: H.-K. Roth, 267–272, Universitäts-Verlag

Photophysics of peptoid transporters - From the ensemble down to the single-molecule level
Rudat, B.; Vollrath, S.; Birtalan, E.; Eisler, H.-J.; Lemmer, U.; Balaban, T. S.; Bräse, S.
2010. Abstracts / 3rd International NanoBio Conference 2010, Zurich, Switzerland, August 24-27 2010, 218, AO Foundation

ac excitation of organic light emitting devices utilizing conductive charge generation layers
Brückner, J.; Christ, N.; Bauder, O.; Gärtner, C.; Seyfried, M.; Glöckler, F.; Lemmer, U.; Gerken, M.
2010. Applied physics letters, 96 (4), 041107/1–3. doi:10.1063/1.3294326

Terahertz emission from lateral photo-Dember currents
Klatt, G.; Hilser, F.; Qiao, W.; Beck, M.; Gebs, R.; Bartels, A.; Huska, K.; Lemmer, U.; Bastian, G.; Johnston, M. B.; Fischer, M.; Faist, J.; Dekorsy, T.
2010. Optics Express, 18 (5), 4939–4947. doi:10.1364/OE.18.004939

Integration of organic semiconductor lasers and single-mode passive waveguides into a PMMA substrate
Vannahme, C.; Klinkhammer, S.; Kolew, A.; Jakobs, P.-J.; Guttmann, M.; Dehm, S.; Lemmer, U.; Mappes, T.
2010. Microelectronic Engineering, 87 (5-8), 693–695. doi:10.1016/j.mee.2009.12.077

Cathodes comprising highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) for semi-transparent polymer solar cells
Nickel, F.; Pütz, A.; Reinhard, M.; Do, H.; Kayser, C.; Colsmann, A.; Lemmer, U.
2010. Organic Electronics, 11 (4), 535–538. doi:10.1016/j.orgel.2009.12.009

Intermediate high index layer for laser mode tuning in organic semiconductor lasers
Stroisch, M.; Woggon, T.; Teiwes-Morin, C.; Klinkhammer, S.; Forberich, K.; Gombert, A.; Gerken, M.; Lemmer, U.
2010. Optics Express, 18 (6), 5890–5895. doi:10.1364/OE.18.005890

Compact spectroscopy system based on tunable organic semiconductor lasers
Woggon, T.; Klinkhammer, S.; Lemmer, U.
2010. Applied Physics B, Lasers and Optics, 99 (1), 47–51. doi:10.1007/s00340-010-3953-6

Deep blue organic light-emitting diodes based on triphenylenes
Wettach, H.; Jester, S. S.; Colsmann, A.; Lemmer, U.; Rehmann, N.; Meerholz, K.; Höger, S.
2010. Synthetic metals, 160 (7/8), 691–700. doi:10.1016/j.synthmet.2010.01.003

Modular Synthesis and Electronic and Hole-Transport Properties of Monodisperse Oligophenothiazines
Müller, T. J. J.; Franz, A. W.; Barkschat, C. S.; Sailer, M.; Meerholz, K.; Müller, D.; Colsmann, A.; Lemmer, U.
2010. Macromolecular Symposia, 287 (1), 1–7. doi:10.1002/masy.201050101

Highly localized non-linear optical white-light response at nanorod ends from non-resonant excitation
Wissert, M. D.; Ilin, K. S.; Siegel, M.; Lemmer, U.; Eisler, H.-J.
2010. Nanoscale, 2 (6), 1018–1020. doi:10.1039/c0nr00025f

Polymer light emitting diodes containing nanoparticle clusters for improved efficiency
Riedel, B.; Hauss, J.; Aichholz, M.; Gall, A.; Lemmer, U.; Gerken, M.
2010. Organic Electronics, 11 (7), 1172–1175. doi:10.1016/j.orgel.2010.04.017

Printed Circuit Board Integration and Encapsulation of High-Speed Polymer Photodiodes
Valouch, S.; Ögün, C.; Kettlitz, S. W.; Züfle, S.; Christ, N.; Lemmer, U.
2010. Sensor Letters, 8 (3), 392–394. doi:10.1166/sl.2010.1283

Organic solar cell degradation probed by the nanosecond photoresponse
Kettlitz, S. W.; Valouch, S.; Lemmer, U.
2010. Applied Physics A, Materials Science & Processing, 99 (4), 805–809. doi:10.1007/s00339-010-5747-4

Enhancing outcoupling efficiency of indium-tin-oxide-free organic light-emitting diodes via nanostructured high index layers
Riedel, B.; Hauss, J.; Geyer, U.; Guetlein, J.; Lemmer, U.; Gerken, M.
2010. Applied Physics Letters, 96 (24), 243302/1–3. doi:10.1063/1.3455098

Organic Semiconductors for Thermoelectric Applications
Scholdt, M.; Do, H.; Lang, J.; Gall, A.; Colsmann, A.; Lemmer, U.; Koenig, J.; Winkler, M.; Boettner, H.
2010. Journal of Electronic Materials, 39 (9), 1589–1592. doi:10.1007/s11664-010-1271-8

Low-threshold conical microcavity dye lasers
Grossmann, T.; Schleede, S.; Hauser, M.; Christiansen, M. B.; Vannahme, C.; Eschenbaum, C.; Klinkhammer, S.; Beck, T.; Fuchs, J.; Nienhaus, G. U.; Lemmer, U.; Kristensen, A.; Mappes, T.; Kalt, H.
2010. Applied Physics Letters, 97 (6), 063304/1–3. doi:10.1063/1.3479532

Influence of temperature-dependent mobilities on the nanosecond response of organic solar cells and photodetectors
Züfle, S.; Christ, N.; Kettlitz, S. W.; Valouch, S.; Lemmer, U.
2010. Applied Physics Letters, 97 (6), Art.Nr.:063306. doi:10.1063/1.3473818

Low-cost label-free biosensors using photonic crystals embedded between crossed polarizers
Nazirizadeh, Y.; Bog, U.; Sekula, S.; Mappes, T.; Lemmer, U.; Gerken, M.
2010. Optics Express, 18 (18), 19120–19128. doi:10.1364/OE.18.019120

Coupled Nanoantenna Plasmon Resonance Spectra from Two-Photon Laser Excitation
Wissert, M. D.; Ilin, K. S.; Siegel, M.; Lemmer, U.; Eisler, H.-J.
2010. Nano Letters, 10 (10), 4161–4165. doi:10.1021/nl102450x

Novel Pyridinium Dyes That Enable Investigations of Peptoids at the Single-Molecule Level
Rudat, B.; Birtalan, E.; Thome, I.; Kölmel, D. K.; Horhoiu, V. L.; Wissert, M. D.; Lemmer, U.; Eisler, H.-J.; Balaban, T. S.; Bräse, S.
2010. The journal of physical chemistry <Washington, DC> / B, 114 (42), 13473–13480. doi:10.1021/jp103308s

Improving the outcoupling efficiency of indium-tin-oxide-free organic light-emitting diodes via rough internal interfaces
Riedel, B.; Kaiser, I.; Hauss, J.; Lemmer, U.; Gerken, M.
2010. Optics Express, 18 (23), A631-A639. doi:10.1364/OE.18.00A631

All-polymer organic semiconductor laser chips : Parallel fabrication and encapsulation
Vannahme, C.; Klinkhammer, S.; Christiansen, M. B.; Kolew, A.; Kristensen, A.; Lemmer, U.; Mappes, T.
2010. Optics express, 18 (24), 24881–24887. doi:10.1364/OE.18.024881

Optical and charge transport properties of a CuIn₁₋ₓGaₓSe₂ solar cell cross section
Slobodskyy, A.; Wang, D.; Scherer, T.; Kübel, C.; Zhang, Z.-H.; Müller, E.; Gerthsen, D.; Powalla, M.; Lemmer, U.
2010. Physical review / B, 82 (20), 201105/1–4. doi:10.1103/PhysRevB.82.201105

In-depth analysis of the CuIn1-xGaxSe2 film for solar cells, structural and optical characterization
Slobodskyy, A.; Slobodskyy, T.; Ulyanenkova, T.; Doyle, S.; Powalla, M.; Baumbach, T.; Lemmer, U.
2010. Applied Physics Letters, 97 (25), Art.Nr.:251911. doi:10.1063/1.3529939

Highly integrated biophotonics towards all-organic lab-on-chip systems
Vannahme, C.; Klinkhammer, S.; Brinkmann, F.; Lenhert, S.; Grossmann, T.; Lemmer, U.
2010. Photonics Europe : Photonic Solutions for Better Health Care II (2010), Brüssel, Belgien, 12.–16. April 2010

2009

Far field calculations and experimental characterization of nanostructured OLEDs
Adam, J.; Hauss, J.; Gleiss, S.; Riedel, B.; Geyer, U.; Lemmer, U.; Gerken, M.
2009. 2009 3rd ICTON Mediterranean Winter Conference (ICTON-MW): 10-12 December 2009, Angers, France, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICTONMW.2009.5385634

Investigation of Energy Relaxation Processes in Ultra-Thin NbN Films with Frequency Domain Measurements
Rall, D.; Ilin, K.; Siegel, M.; Lemmer, U.
2009, Oktober 5. Tagung Kryoelektronische Bauelemente (KRYO 2009), Oberhof, Deutschland, 4.–6. Oktober 2009

Energy relaxation time in NbN and YBCO thin films under optical irradiation
Rall, D.; Probst, P.; Hofherr, M.; Wünsch, S.; Ilin, K.; Lemmer, U.; Siegel, M.
2009, September. 9th European Conference on Applied Superconductivity (EUCAS 2009), Dresden, Deutschland, 13.–17. September 2009

Investigation of Energy Relaxation Processes in NbN thin films using Optical Irradiation
Rall, D.; Hofherr, M.; Ilin, K.; Wünsch, S.; Siegel, M.; Lemmer, U.; Semenov, A.; Hübers, H.-W.
2009. DPG Frühjahrstagung der Sektion Kondensierte Materie - Fachverband Tiefe Temperaturen (SKM 2009), Dresden, Deutschland, 22.–27. März 2009

In situ monitoring the drying kinetics of knife coated polymer-fullerene films for organic solar cells
Schmidt-Hansberg, B.; Klein, M. F. G.; Peters, K.; Buss, F.; Pfeifer, J.; Walheim, S.; Colsmann, A.; Lemmer, U.; Scharfer, P.; Schabel, W.
2009. Journal of Applied Physics, 106 (12), 124501/1–7. doi:10.1063/1.3270402

Hot Embossing of Micro- and Nanostructures for the Integration of Organic Semiconductor Lasers and Deep UV Induced Waveguides towards a Lab-on-chip System
Lemmer, U.; Vannahme, C.; Klinkhammer, S.; Kolew, A.; Woggon, T.; Mappes, T.; Mohr, J.
2009. Proceedings of the 35th International Conference on Micro- and Nano-Engineering (MNE), September 28 - 1 October, 2009, Ghent, Belgium. Ed.: K. Ronse, Elsevier

Printed Circuit Board Integration and Encapsulation of High-Speed Polymer Photodiodes
Lemmer, U.; Valouch, S.; Ögün, C.; Kettlitz, S. W.; Züfle, S.
2009. Proceedings / E-MRS 2008 spring meeting, Strasbourg, France, May 26 - 30, 2008, Symposium L: Thin Film Chalcogenide Photovoltaic Materials. Ed.: R. Scheer, Elsevier

Auslegung eines vollfarbsteuerbaren High-Power-LED-Moduls
Lemmer, U.; Scholdt, M.; Domhardt, A.; Wendel, S.
2009. Tagungsband / Lux junior 2009: 9. Forum für den lichttechnischen Nachwuchs, 25. bis 27.9.2009, Dörnfeld/Ilm; 1 CD-Rom, Techn. Univ

Polymer biophotonic lab-on-chip devices with integrated organic semiconductor lasers
Mappes, T.; Vannahme, C.; Klinkhammer, S.; Woggon, T.; Schelb, M.; Lenhert, S.; Mohr, J.; Lemmer, U.
2009. Proceedings / Organic semiconductors in sensors and bioelectronics II, 4 - 6 August 2009, San Diego, California, United States. Ed.: R. Shinar, Art.Nr. 74180A, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.825918

Light source modulation using light guide rods
Lemmer, U.; Domhardt, A.; Wendel, S.; Rohlfing, U.
2009. Proceedings / Nonimaging optics: efficient design for illumination and solar concentration VI, 2 - 4 August 2009, San Diego, California, United States. Ed.: R. Winston, 74230Q/1–11, Society of Photo-optical Instrumentation Engineers (SPIE)

Lichtquellenmodulation mit Lichtmischstäben
Lemmer, U.; Wendel, S.; Domhardt, A.; Rohlfing, U.
2009. Tagungsband / Lux junior 2009: 9. Forum für den lichttechnischen Nachwuchs, 25. bis 27.9.2009, Dörnfeld/Ilm; 1 CD-Rom, Techn. Univ

A continuously tunable low-threshold organic semiconductor distributed feedback laser fabricated by rotating shadow mask evaporation
S. Klinkhammer; Woggon, T.; Geyer, U.; Vannahme, C.; Dehm, S.; Mappes, T.; Lemmer, U.
2009. Applied physics / B, 97 (4), 787–791. doi:10.1007/s00340-009-3789-0

Single-Molecule Spectroscopy on a Ladder-Type Conjugated Polymer: Electron-Phonon Coupling and Spectral Diffusion
Lemmer, U.; Hildner, R.; Winterling, L.; Scherf, U.; Köhler, J.
2009. ChemPhysChem, 10 (14), 2524–2534

Large-area sub-micron gap interdigitated THz emitters fabricated by interference lithography and angle evaporation
Lemmer, U.; Huska, K.; Klatt, G.; Hetterich, J.; Geyer, U.; Dekorsy, T.; Bastian, G.
2009. Electronics Letters, 45 (16), 851–853

Photonic stopband tuning of organic semiconductor distributed feedback lasers by oblique angle deposition of an intermediate high index layer
Lemmer, U.; Stroisch, M.; Teiwes-Morin, C.; Woggon, T.; Gerken, M.; Forberich, K.; Gombert, A.
2009. Applied Physics Letters, 95 (2), 021112/1–3

Polymeric anodes from poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) for 3.5% efficient organic solar cells
Lemmer, U.; Do, H.; Reinhard, M.; Vogeler, H.; Pütz, A.; Klein, M. F. G.; Colsmann, A.; Schabel, W.
2009. Thin Solid Films, 517 (20), 5900–5902

Near-infrared imaging with quantum-dot-sensitized organic photodiodes
Lemmer, U.; Rauch, T.; Boberl, M.; Tedde, S. F.; Furst, J.; Kovalenko, M. V.; Hesser, G.; Heiss, W.; Hayden, O.
2009. Nature Photonics, 3 (6), 332–336

Far-Field Nonmodal Laser Emission for Low-Speckle Laser Projection
Lemmer, U.; Riechert, F.; Craggs, G.; Meuret, Y.; Thienpont, H.; Verschaffelt, G.
2009. IEEE Photonics Technology Letters, 21 (20), 1487–1489

Laser speckle reduction via colloidal-dispersion-filled projection screens
Lemmer, U.; Riechert, F.; Bastian, G.
2009. Applied Optics, 48 (19), 3742–3749

Design for optimized coupling of organic semiconductor laser light into polymer waveguides for highly integrated biophotonic sensors
Timo, M.; Vannahme, C.; Schelb, M.; Lemmer, U.; Mohr, J.
2009. Microelectronic engineering, 86 (4-6), 1499–1501. doi:10.1016/j.mee.2009.01.076

Method to determine the speckle characteristics of front projection screens
Lemmer, U.; Riechert, F.; Glöckler, F.
2009. Applied Optics, 48 (7), 1316–1321

Ray-based simulation of the propagation of light with different degrees of coherence through complex optical systems
Lemmer, U.; Riechert, F.; Dürr, F.; Rohlfing, U.
2009. Applied Optics, 48 (8), 1527–1534

Plasma patterning of Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) anodes for efficient polymer solar cells
Lemmer, U.; Colsmann, A.; Stenzel, F.; Balthasar, G.; Do, H.
2009. Thin Solid Films, 517 (5), 1750–1752

Nanostructuring of organic-inorganic hybrid materials for distributed feedback laser resonators by two-photon polymerization
Lemmer, U.; Woggon, T.; Kleiner, T.; Punke, M.
2009. Optics Express, 17 (4), 2500–2507

Formation and impact of hot spots on the performance of organic photovoltaic cells
Lemmer, U.; Steim, R.; Choulis, S. A.; Schilinsky, P.; Brabec, C. J.
2009. Applied Physics Letters, 94 (4), 043304/1–3

Low-speckle laser projection with a broad-area vertical-cavity surface-emitting laser in the nonmodal emission regime
Lemmer, U.; Riechert, F.; Craggs, G.; Meuret, Y.; Giel, B. van; Thienpont, H.; Verschaffelt, G.
2009. Applied Optics, 48 (4), 792–798

Nanosecond response of organic solar cells and photodetectors
Lemmer, U.; Christ, N.; Kettlitz, S. W.; Valouch, S.; Züfle, S.; Gärtner, C.; Punke, M.
2009. Journal of Applied Physics, 105 (10), 104513/1–9

2008

Response of NbN ultra-thin Superconducting Films to Optical Irradiation
Rall, D.; Ilin, K.; Wünsch, S.; Glöckler, F.; Lemmer, U.; Siegel, M.
2008. DPG Frühjahrstagung der Sektion Kondensierte Materie - Fachverband Tiefe Temperaturen (SKM 2008), Berlin, Deutschland, 25.–29. Februar 2008

Spatially resolved optical characterization of photonic crystal slabs using direct evaluation of photonic modes
Lemmer, U.; Nazirizadeh, Y.; Geyer, U.; Gerken, M.
2008. Proceedings of the 2008 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, Freiburg, Germany, 11 - 14 August 2008, 112–113, Institute of Electrical and Electronics Engineers (IEEE)

Direct observation of photonic modes in photonic crystal slabs
Lemmer, U.; Gerken, M.; Nazirizadeh, Y.; Müller, J. G.; Geyer, U.
2008. Proceedings of the 2008 10th Anniversary International Conference on Transparent Optical Networks, Athens, Greece, 22 - 26 June 2008. Ed.: M. Marciniak, 72–75, Institute of Electrical and Electronics Engineers (IEEE)

Optical Digital Audio Interconnect Composed of Organic Light Emitting Diodes and Organic Photodiodes as Optoelectronic Components
Lemmer, U.; Valouch, S.; Kettlitz, S. W.; Punke, M.
2008. Proceedings of the Organic Semiconductor Conference (OSC 2008), 30 September-1 October 2008, Frankfurt, Germany, cintelliq

Relevanz und Optimierungsbedarf des Fußgängerschutzes im Straßenverkehr aus lichttechnischer Sicht
Lemmer, U.; Jebas, C.; Manz, K.
2008. Proceedings / Licht 2008 - 18. Gemeinschaftstagung der Lichttechnischen Gesellschaften Deutschlands, Österreichs, der Schweiz und der Niederlande, Ilmenau, 10. bis 13. September 2008, 554–561, LiTG

Ray-Based Simulation of the Propagatin of Coherent Light Trough Complex Optical Systems
Lemmer, U.; Riechert, F.; Dürr, F.
2008. Proceedings / Technical digest of the Fourteenth Microoptics Conference, September 25 - 27, 2008, Diamant Conference and Business Centre, Brussels - Belgium, 123–124, The Microoptics Group

Low-Speckle Laser Projection with a Broad-Area VCSEL in the Incoherent Emission Regime
Lemmer, U.; Riechert, F.; Verschaffelt, G.; Craggs, G.; Meuret, Y.; Giel, B. van; Thienpont, H.
2008. Proceedings / Technical digest of the Fourteenth Microoptics Conference, September 25 - 27, 2008, Diamant Conference and Business Centre, Brussels - Belgium, 290–291, The Microoptics Group

TIR optics for non-rotationally symmetric illumination design
Lemmer, U.; Domhardt, A.; Rohlfing, U.; Weingaertner, S.
2008. Proceedings of the Illumination optics, 2 - 3 September 2008, Glasgow, United Kingdom. Ed.: T. E. Kidger, 710304/1–11, Society of Photo-optical Instrumentation Engineers (SPIE)

New design tools for LED headlamps
Lemmer, U.; Domhardt, A.; Kooß, D.; Manz, K.; Klinger, K.; Rohlfing, U.; Weingaertner, S.
2008. Proceedings of the Optical sensors 2008, 7 - 10 April 2008, Strasbourg, France. Ed.: F. Berghmans, 70032C/1–10, Society of Photo-optical Instrumentation Engineers (SPIE)

Do advertisements at the roadside distract the driver?
Lemmer, U.; Kettwich, C.; Klinger, K.
2008. Proceedings of the Optical sensors 2008, 7 - 10 April 2008, Strasbourg, France. Ed.: F. Berghmans, 70032J/1–5, Society of Photo-optical Instrumentation Engineers (SPIE)

New headlamp technologies
Lemmer, U.; Jebas, C.; Klinger, K.
2008. Proceedings of the Optical sensors 2008, 7 - 10 April 2008, Strasbourg, France. Ed.: F. Berghmans, 70032A/1–7, Society of Photo-optical Instrumentation Engineers (SPIE)

Experimental quality factor determination of guided-mode resonances in photonic crystal slabs
Lemmer, U.; Nazirizadeh, Y.; Gerken, M.
2008. Applied Physics Letters, 93 (26), 261110/1–3

Large-scale patterning of indium tin oxide electrodes for guided mode extraction from organic light-emitting diodes
Lemmer, U.; Geyer, U.; Hauss, J.; Riedel, B.; Gleiss, S.; Gerken, M.
2008. Journal of Applied Physics, 104 (9), 093111/1–5

Optical characterization of photonic crystal slabs using orthogonally oriented polarization filters
Lemmer, U.; Nazirizadeh, Y.; Müller, J. G.; Geyer, U.; Schelle, D.; Kley, E.-B.; Tünnermann, A.; Gerken, M.
2008. Optics Express, 16 (10), 7153–7160

A Numerical Scheme to Model Current and Voltage Excitation of Organic Light-Emitting Diodes
Lemmer, U.; Pflumm, C.; Gärtner, C.
2008. IEEE Journal of Quantum Electronics, 44 (8), 790–798

Speckle characteristics of a broad-area VCSEL in the incoherent emission regime
Lemmer, U.; Riechert, F.; Verschaffelt, G.; Peeters, M.; Bastian, G.; Fischer, I.
2008. Optics Communications, 281 (17), 4424–4431

Optical Data Link Employing Organic Light-Emitting Diodes and Organic Photodiodes as Optoelectronic Components
Lemmer, U.; Punke, M.; Valouch, S.; Kettlitz, S. W.; Gerken, M.
2008. IEEE/OSA Journal of Lightwave Technology, 26 (7), 816–823

Hybrid organic-dielectric thin film stacks for nonlinear optical applications
Lemmer, U.; Peters, S.; Glöckler, F.; Gerken, M.
2008. Thin Solid Films, 516 (14), 4519–4525

Ionic Liquid Based Approach to Luminescent LaPO4:Ce,Tb Nanocrystals: Synthesis, Characterization and Application
Lemmer, U.; Trampert, K.; Heering, W.; Zharkouskaya, A.; Feldmann, C.
2008. European Journal of Inorganic Chemistry, (6), 873–877

Die dynamische Leuchtweitenregelung und ihre Relevanz für die Verkehrssicherheit
Lemmer, U.; Jebas, C.; Klinger, K.
2008. VKU Verkehrsunfall und Fahrzeugtechnik, (4)

Low-speckle laser projection with a broad-area VCSEL in the incoherent emission regime
Lemmer, U.; Riechert, F.; Verschaffelt, G.; Craggs, G.; Meuret, Y.; Giel, B. van; Thienpont, H.
2008. SID Symposium Digest of Technical Papers, 39 (1), 2098–2101

2007

Einweihung der "Karlsruhe School of Optics and Photonics"
Lemmer, U.; Lederer, A.; Radio Regenbogen
2007. (S. Fuchs, Hrsg.). doi:10.5445/DIVA/2007-368

Autoscheinwerfer der Zukunft : intelligente Beleuchtungssysteme passen sich der Fahrsituation an
Lemmer, U.; Manz, K.; Radio Regenbogen
2007. (S. Fuchs, Hrsg.). doi:10.5445/DIVA/2007-13

Organic semiconductor lasers as integrated light sources for optical sensor systems
Lemmer, U.; Woggon, T.; Gerken, M.; Wang, J.; Punke, M.; Stroisch, M.; Ebenhoch, B.; Geyer, U.; Karnutsch, C.; Bruendel, M.; Weimann, T.
2007. Proceedings / Organic-based chemical and biological sensors, 28 August 2007, San Diego, California, USA. Ed.: R. Shinar, 665909/1–11, Society of Photo-optical Instrumentation Engineers (SPIE)

Speckle phenomena in pulsed broad-area vertical-cavity surface-emitting laser emission under different driving and illumination conditions
Lemmer, U.; Riechert, F.; Peeters, M.; Fischer, I.; Verschaffelt, G.; Bastian, G.
2007. Proceedings of the 2007 European Conference on Lasers & Electro-Optics and the International Quantum Electronics Conference, CLEO/Europe-IQEC 2007, Munich, Germany, 17 - 22 June 2007, 1 S., IEEE Service Center

All-organic waveguide coupled solid-state distributed feedback laser
Lemmer, U.; Punke, M.; Woggon, T.; Stroisch, M.; Heinrich, M. P.; Karnutsch, C.; Mozer, S.; Bruendel, M.; Rabus, D. G.; Weimann, T.
2007. Proceedings of the 2007 European Conference on Lasers & Electro-Optics and the International Quantum Electronics Conference, CLEO/Europe-IQEC 2007, Munich, Germany, 17 - 22 June 2007, 1 S., IEEE Service Center

Fabrication and characterization of organic solid-state lasers using imprint technologies
Lemmer, U.; Woggon, T.; Pütz, A.; Gerken, M.; Wang, J.; Bruendel, M.; Rabus, D. G.; Weimann, T.; Punke, M.; Stroisch, M.; Heinrich, M. P.
2007. Proceedings of the 2007 digest of the LEOS summer topical meetings, Portland, OR, 23 - 25 July 2007, 103–104, Institute of Electrical and Electronics Engineers (IEEE)

Reducing the impact of charge carrier induced absorption in organic double heterostructure laser diodes
Lemmer, U.; Gärtner, C.; Karnutsch, C.
2007. Proceedings of the 2007 European Conference on Lasers & Electro-Optics and the International Quantum Electronics Conference, CLEO/Europe-IQEC 2007, Munich, Germany, 17 - 22 June 2007, 1 S., IEEE Service Center

Untersuchung des Einflusses der Vorfeld- und Seitenausleuchtung automobiler Scheinwerfer auf die Erkennbarkeitsentfernung von Sehobjekten
Lemmer, U.; Jebas, C.; Klinger, K.
2007. Tagungsband / Lux Junior 2007: 8. Forum für den Lichttechnischen Nachwuchs, 21. bis 23. September 2007, Dörnfeld/Ilm; 1 CD-Rom, Techn. Univ

Die dynamische Leuchtweitenregelung und ihre Relevanz für die Verkehrssicherheit
Lemmer, U.; Jebas, C.; Klinger, K.
2007. Tagungsband / Lux Junior 2007: 8. Forum für den Lichttechnischen Nachwuchs, 21. bis 23. September 2007, Dörnfeld/Ilm; 1 CD-Rom, Techn. Univ

Distribution and Emission Properties of Fluorescing Nanospheres on 2D Photonic Crystal Slabs
Lemmer, U.; Gerken, M.; Nazirizadeh, Y.; Müller, J. G.; Bornemann, R.; Bastian, G.; Schelle, D.; Kley, E.-B.; Tünnermann, A.
2007. Proceedings of the 2007 European Conference on Lasers & Electro-Optics and the International Quantum Electronics Conference, CLEO/Europe-IQEC 2007, Munich, Germany, 17 - 22 June 2007, 1 S., IEEE Service Center

Optical design of LED-based automotive tail lamps
Lemmer, U.; Domhardt, A.; Rohlfing, U.; Klinger, K.; Manz, K.; Kooß, D.
2007. Proceedings / Nonimaging optics and efficient illumination systems IV, 26 - 27 August 2007, San Diego, California, USA. Ed.: R. Winston, 66700L/ 1–10, Society of Photo-optical Instrumentation Engineers (SPIE)

Organic photo detectors for an integrated thin-film spectrometer
Lemmer, U.; Peters, S.; Sui, Y.; Glöckler, F.; Gerken, M.
2007. Proceedings / Next-generation spectroscopic technologies, 10 - 11 September 2007, Boston, Massachusetts, USA. Ed.: C. D. Brown, 676503/1–10, Society of Photo-optical Instrumentation Engineers (SPIE)

Loss processes in organic double-heterostructure laser diodes
Lemmer, U.; Gärtner, C.; Karnutsch, C.; Brückner, J.; Christ, N.; Uebe, S.; Görrn, P.; Rabe, T.; Riedl, T.; Kowalsky, W.
2007. Proceedings / Organic light emitting materials and devices XI, 26 - 29 August 2007, San Diego, California, USA. Ed.: Z. H. Kafafi, 66550T/1–13, Society of Photo-optical Instrumentation Engineers (SPIE)

Numerical simulation tool for synthetic speckle pattern images and their intensity-based integration under variable conditions for metrology applications
Lemmer, U.; Riechert, F.; Bastian, G.
2007. Proceedings / Modeling aspects in optical metrology, 18 - 19 June 2007, Munich, Germany. Ed.: H. Bosse, Society of Photo-optical Instrumentation Engineers (SPIE)

Tunable superprism effect in photonic crystals
Lemmer, U.; Glöckler, F.; Peters, S.; Gerken, M.
2007. Physica Status Solidi (A), 204 (11), 3790–3804

Continuous-wave two-photon spectroscopy on a ladder-type conjugated polymer
Lemmer, U.; Hildner, R.; Scherf, U.; Köhler, J.
2007. Chemical Physics Letters, 448 (4-6), 213–217

Optimized Design of Plasmonic MSM Photodetector
Lemmer, U.; Hetterich, J.; Bastian, G.; Gippius, N. A.; Tikhodeev, S. G.; Plessen, G. von
2007. IEEE Journal of Quantum Electronics, 43 (10), 855–859

Dynamic characterization of organic bulk heterojunction photodetectors
Lemmer, U.; Punke, M.; Valouch, S.; Kettlitz, S. W.; Christ, N.; Gärtner, C.; Gerken, M.
2007. Applied Physics Letters, 91 (7), 071118/1–3

Organic semiconductor distributed feedback laser fabricated by direct laser interference ablation
Lemmer, U.; Stroisch, M.; Woggon, T.; Bastian, G.; Violakis, G.; Pissadakis, S.
2007. Optics Express, 15 (7), 3968–3973

Laser Diode-Pumped Organic Semiconductor Lasers Utilizing Two-Dimensional Photonic Crystal Resonators
Lemmer, U.; Karnutsch, C.; Stroisch, M.; Punke, M.; Wang, J.; Weimann, T.
2007. IEEE Photonics Technology Letters, 19 (10), 741–743

Improved organic semiconductor lasers based on a mixed-order distributed feedback resonator design
Lemmer, U.; Gärtner, C.; Karnutsch, C.; Pflumm, C.
2007. Applied Physics Letters, 90 (13), 131104/1–3

The influence of annihilation processes on the threshold current density of organic laser diodes
Lemmer, U.; Gärtner, C.; Karnutsch, C.; Pflumm, C.
2007. Journal of Applied Physics, 101 (2), 023107/1–9

Coupling of Organic Semiconductor Amplified Spontaneous Emission Into Polymeric Single-Mode Waveguides Patterned by Deep-UV Irradiation
Punke, M.; Mozer, S.; Stroisch, M.; Heinrich, M. P.; Lemmer, U.; Henzi, P.; Rabus, D. G.
2007. IEEE photonics technology letters, 19 (2), 61–63. doi:10.1109/LPT.2006.889026

2006

Picosecond excitation energy relaxation processes in a ladder-type π-conjugated polymer
Hildner, R.; Lemmer, U.; Scherf, U.; Köhler, J.
2006. Chemical physics letters, 429 (1-3), 103–108. doi:10.1016/j.cplett.2006.08.001

Low threshold blue conjugated polymer DFB lasers
Lemmer, U.; Karnutsch, C.; Haug, V.; Gärtner, C.
2006. Technical digest CD-ROM / Conference on Lasers and Electro-Optics, Quantum Electronics and Laser Science Conference, Conference on Photonic Applications, Systems and Technologies, Long Beach Convention Center, Long Beach, California, USA, CLEO/QELS Conference, May 21 - 26, 2006, PhAST Conference, May 22 - 25, 2006, 1–2, Optica Publishing Group (OSA)

Spontaneous Emission Properties of Single Emitters in Planar Photonic Crystals
Lemmer, U.; Gerken, M.; Müller, J. G.; Bornemann, R.; Bastian, G.; Schelle, D.; Augustin, M.; Kley, E.-B.; Tünnermann, A.
2006. Proceedings of 2006 8th International Conference on Transparent Optical Networks, Nottingham, United Kingdom, June 18 - 22, 2006. Ed.: M. Marciniak, 36–39, IEEE Operations Center

Influence of electronic properties on the threshold behaviour of organic laser diode structures
Lemmer, U.; Pflumm, C.; Gärtner, C.; Karnutsch, C.
2006. Proceedings / Organic light-emitting materials and devices X, 13 - 16 August 2006, San Diego, California, USA. Ed.: Z. H. Kafafi, 63330W/1–9, Society of Photo-optical Instrumentation Engineers (SPIE)

Optimization of electron transport and cathode materials for efficient organic solar cells
Lemmer, U.; Colsmann, A.; Junge, J.; Wellinger, T.; Kayser, C.
2006. Proceedings / Organic optoelectronics and photonics II, 3 - 6 April 2006, Strasbourg, France. Ed.: P. L. Heremans, 619220/1–5, Society of Photo-optical Instrumentation Engineers (SPIE)

Organic semiconductor devices for micro-optical applications
Lemmer, U.; Punke, M.; Mozer, S.; Stroisch, M.; Gerken, M.; Bastian, G.; Rabus, D. G.; Henzi, P.
2006. Proceedings / Micro-optics, VCSELs, and photonic interconnects II: fabrication, packaging, and integration, 3 - 5 April 2006, Strasbourg, France. Ed.: H. Thienpont, 618505/1–13, Society of Photo-optical Instrumentation Engineers (SPIE)

New technologies for night vision
Lemmer, U.; Schellinger, S.; Klinger, K.; Kooß, D.; Manz, K.
2006. Proceedings / Photonics in the automobile II, 6 April 2006, Strasbourg, France, Photonics Europe. Ed.: P. P. Meyrueis, 61980G/1–7, Society of Photo-optical Instrumentation Engineers (SPIE)

Advantages of ambient interior lighting for drivers contrast vision
Lemmer, U.; Schellinger, S.; Franzke, D.; Klinger, K.
2006. Proceedings / Photonics in the automobile II, 6 April 2006, Strasbourg, France, Photonics Europe. Ed.: P. P. Meyrueis, 61980J/1–6, Society of Photo-optical Instrumentation Engineers (SPIE)

Organic light-emitting diodes and organic photodetectors as optoelectronic devices for an optical interconnect
Lemmer, U.; Valouch, S.; Gerken, M.; Punke, M.; Mozer, S.
2006. Tagungsband zum 9. Workshop Optik in der Rechentechnik, 27.10.2006, Siegen, 2006. Hrsg.: E. Griese, Siegen

Design of all-optical spatial beam switches using the superprism effect in one-dimensional photonic nanostructures
Lemmer, U.; Glöckler, F.; Peters, S.; Gerken, M.
2006. Vortrag auf der AMOP-Frühjahrstagung der Fachverbände Atomphysik, Massenspektrometrie, Molekülphysik, Quantenoptik und Photonik, 13. - 17. März 2006, Johann Wolfgang Goethe Universität Frankfurt am Main, Physikverl

Influence of electronic properties on the threshold behaviour of organic laser diode structures
Lemmer, U.; Karnutsch, C.; Gärtner, C.; Pflumm, C.
2006. Proceedings / Organic light-emitting materials and devices X, 13 - 16 August 2006, San Diego, California, USA. Ed.: Z. H. Kafafi, 33, Society of Photo-optical Instrumentation Engineers (SPIE)

Numerical study of annihilation processes in electrically pumped organic semiconductor laser diodes
Lemmer, U.; Gärtner, C.; Pflumm, C.; Karnutsch, C.; Haug, V.
2006. Proceedings / Organic light-emitting materials and devices X : 13 - 16 August 2006, San Diego, California, USA. Ed.: Z. H. Kafafi, 63331J/1–12, Society of Photo-optical Instrumentation Engineers (SPIE)

Picosecond excitation energy relaxation processes in a ladder-type [pi]-conjugated polymer
Lemmer, U.; Hildner, R.; Scherf, U.; Köhler, J.
2006. Chemical Physics Letters, 429 (1-3), 103–108

Low threshold blue conjugated polymer lasers with first- and second-order distributed feedback
Lemmer, U.; Karnutsch, C.; Gärtner, C.; Haug, V.
2006. Applied Physics Letters, 89 (20), 201108/1–3

Organic tandem solar cells comprising polymer and small-molecule subcells
Lemmer, U.; Colsmann, A.; Junge, J.; Kayser, C.
2006. Applied Physics Letters, 89 (20), 203506/1–3

Continuous-wave solid-state dye laser
Lemmer, U.; Bornemann, R.; Thiel, E.
2006. Optics Letters, 31 (11), 1669–1671

High-repetition-rate white-light pump-probe spectroscopy with a tapered fiber
Lemmer, U.; Punke, M.; Hoos, F.; Karnutsch, C.; Linder, N.; Streubel, K.
2006. Optics Letters, 31 (8), 1157–1159

Lasing action in two-dimensional organic photonic crystal lasers with hexagonal symmetry
Lemmer, U.; Forberich, K.; Diem, M.; Crewett, J.; Gombert, A.; Busch, K.
2006. Applied Physics B: Lasers and Optics, 82 (4), 539–541

Visualization of astaxanthin localization in HT29 human colon adenocarcinoma cells by combined confocal resonance Raman and fluorescence microspectroscopy
Lemmer, U.; Briviba, K.; Bornemann, R.
2006. Molecular nutrition & food research, 50 (11), 991–995

Lasing mechanisms in organic photonic crystal lasers with two-dimensional distributed feedback
Lemmer, U.; Forberich, K.; Gombert, A.; Pereira, S.; Crewett, J.; Diem, M.; Busch, K.
2006. Journal of Applied Physics, 100 (2), 023110/1–6

CW-Polymerlaser - Dauerstrich-Laserlicht aus Speziallack
Lemmer, U.; Bornemann, R.; Thiel, E.
2006. Photonik - Fachzeitschrift für die optischen Technologien, (5), 66–69

Design of a 1:N switch using nonlinear optical materials in one-dimensional photonic nanostructures
Lemmer, U.; Glöckler, F.; Peters, S.; Gerken, M.
2006. Proceedings / Nanophotonics for communication: materials and devices III, 2 - 3 October 2006, Boston, Massachusetts, USA. Ed.: M. Gerken, 63930K/1–8, Society of Photo-optical Instrumentation Engineers (SPIE)

2005

Spatial beam switching using the superprism effect in nonlinear thin-film stacks
Lemmer, U.; Gerken, M.; Glöckler, F.
2005. Proceedings / Advances in optical thin films II, 13 - 15 September 2005, Jena, Germany. Ed.: C. Amra, 59632B/1–7, Society of Photo-optical Instrumentation Engineers (SPIE)

Modelling of the laser dynamics of electrically pumped organic semiconductor laser diodes
Lemmer, U.; Karnutsch, C.; Boschert, R.; Gerken, M.; deMello, J. C.; Bradley, D. D. C.; Pflumm, C.
2005. Proceedings / Organic light-emitting materials and devices IX, 31 July - 3 August, San Diego, California, USA, proceedings of the Tenth [i.e. Ninth] Conference on Organic Light-Emitting Materials and Devices. Ed.: Z. H. Kafafi, 59370X/1–13, Society of Photo-optical Instrumentation Engineers (SPIE)

NCAP-Lighting - A New Approach to Rate Illumination of Cars
Lemmer, U.; Klinger, K.; Kooß, D.; Manz, K.; Schellinger, S.
2005. Proceedings of the 6th International Symposium on Automotive Lighting, ISAL 2005, September 27 - 28, 2005. Ed.: H. F. Schlaak, 831–839, Utz

Reaction Time Increase due to the Overlap of Brake Light and Turn Signals
Lemmer, U.; Klinger, K.; Tabisova, S.; Kooß, D.; Manz, K.
2005. Proceedings of the 6th International Symposium on Automotive Lighting, ISAL 2005, September 27 - 28, 2005. Ed.: H. F. Schlaak, 535–543, Utz

Lasertätigkeit in 1- und 2-dimensionalen photonischen Kristallen
Lemmer, U.; Gerken, M.; Stroisch, M.; Forberich, K.; Gombert, A.; Fetten, M.; Salbeck, J.
2005. Vortrag / 69. Jahrestagung der Deutschen Physikalischen Gesellschaft (DPG) e. V., gemeinsame Tagung aller Fachverbände und Arbeitskreise der DPG mit der Astronomischen Gesellschaft, Berlin, 4. - 9. März 2005, Physik-Verlag

Dispersive photonic nanostructures for integrated sensors
Lemmer, U.; Gerken, M.
2005. Proceedings / Nanosensing: materials and devices II, 23 - 26 October 2005, Boston, Massachusetts, USA, proceedings of the Second Conference on Nanosensing: Materials and Devices. Ed.: M. S. Islam, 60080W/1–8, Society of Photo-optical Instrumentation Engineers (SPIE)

Organic semiconductor distributed feedback lasers
Lemmer, U.; Karnutsch, C.; Gerken, M.
2005. Proceedings / Nanosensing: materials and devices II, 23 - 26 October 2005, Boston, Massachusetts, USA, proceedings of the Second Conference on Nanosensing: Materials and Devices. Ed.: M. S. Islam, 60080Z/1–15, Society of Photo-optical Instrumentation Engineers (SPIE)

Amplified spontaneous emission in an organic semiconductor multilayer waveguide structure including a highly conductive transparent electrode
Lemmer, U.; Gerken, M.; Reufer, M.; Feldmann, J.; Rudati, P.; Ruhl, A.; Muller, D.; Meerholz, K.; Karnutsch, C.
2005. Applied Physics Letters, 86 (22), 221102/1–3

Parametric study of modal gain and threshold power density in electrically pumped single-layer organic optical amplifier and laser diode structures
Lemmer, U.; Pflumm, C.; Karnutsch, C.; Gerken, M.
2005. IEEE Journal of Quantum Electronics, 41 (3), 316–336

Ultrafast dynamics of charge carrier photogeneration and geminate recombination in conjugated polymer:fullerene solar cells
Lemmer, U.; Müller, J. G.; Lupton, J. M.; Feldmann, J.; Scharber, M. C.; Sariciftci, N. S.; Brabec, C. J.; Scherf, U.
2005. Physical Review B, 72 (19), 195208/1–10

Bestimmung der Polymerverteilung in textilbewehrtem Beton mittels konfokaler Raman-Mikroskopie
Lemmer, U.; Bornemann, R.; Walk-Lauffer, B.; Raupach, M.
2005. Photonik - Fachzeitschrift für die optischen Technologien, (4), 60–63

2004

dCAM: direct Confocal Absorption Microscopy - A new three-dimensional imaging microscopy process without fluorescent dyes
Lemmer, U.; Bornemann, R.; Thiel, E.
2004. Proceedings of the Nanofair 2004 - new ideas for industry: international symposium Karlsruhe, 23rd and 24th November, 2004, VDI Verlag

Lasertätigkeit in ein- und zweidimensionalen photonischen Kristallen
Lemmer, U.; Forberich, K.; Gombert, A.; Stroisch, M.; Pereira, S.; Busch, K.
2004. Vortrag / Frühjahrstagung des Arbeitskreises Festkörperphysik bei der DPG, Regensburg 08. - 12. März 2004, gemeinsame Tagung mit der Österreichischen Physikalischen Gesellschaft, der Nederlandse Natuurkundige Vereniging und der Union of Czech Mathematicians and Physicists und dem Fachbereich Physik der Universität Regensburg, Physik-Verl

Gain and Polaron Absorption in Electrically Pumped Single-Layer Organic Laser Diodes
Lemmer, U.; Karnutsch, C.; Gerken, M.; Pflumm, C.
2004. Proceeding of the 34th European Solid-State Device Research Conference, Leuven, Belgium, 21 - 23 September 2004. Ed.: R. P. Mertens, 421–424, IEEE Operations Center

Numerical simulation of modal gain in electrically pumped organic semiconductor lasers
Lemmer, U.; Karnutsch, C.; Gerken, M.; Pflumm, C.
2004. Procedings / Organic light-emitting materials and devices VIII, 2 - 4 August 2004, Denver, Colorado, USA; proceedings of the Eighth Conference on Organic Light-Emitting Materials and Devices. Ed.: Z. H. Kafafi, 279–286, Society of Photo-optical Instrumentation Engineers (SPIE)

Low-threshold polymeric distributed feedback lasers with metallic contacts
Lemmer, U.
2004. Applied Physics Letters, 84 (17), 3262–3264

Ultrafast intramolecular energy transfer in single conjugated polymer chains probed by polarized single chromophore spectroscopy
Lemmer, U.; Müller, J. G.; Lupton, J. M.; Feldmann, J.; Scherf, U.
2004. Applied Physics Letters, 84 (7), 1183–1185

2003

One- and two-photon photocurrents from tunable organic microcavity photodiodes
Lemmer, U.; Koeppe, R.; Müller, J. G.; Lupton, J. M.; Feldmann, J.; Scherf, U.
2003. Applied Physics Letters, 82 (16), 2601–2603

Organic Microcavity Photodiodes
Lemmer, U.; Lupton, J. M.; Koeppe, R.; Müller, J. G.; Feldmann, J.; Scherf, U.
2003. Advanced Materials, 15 (17), 1471–1474

Ultrafast spectroscopy of polaron pairs in polymer solar cells
Lemmer, U.; Müller, J. G.; Scharber, M.; Feldmann, J.; Scherf, U.; Sariciftci, N. S.
2003. Synthetic Metals, 137 (1-3), 1475–1476

Linewidth-Limited Energy Transfer in Single Conjugated Polymer Molecules
Lemmer, U.; Müller, J. G.; Raschke, G.; Anni, M.; Scherf, U.; Lupton, J. M.; Feldmann, J.
2003. Physical Review Letters, 91 (26), 267403/1–4

A Low Threshold Polymer Laser Based on Metallic Nanoparticle Gratings
Lemmer, U.
2003. Advanced Materials, 15 (20), 1726–1729

2002

Picosecond amplified spontaneous emission bursts from a molecularly doped organic semiconductor
Lemmer, U.; Kallinger, C.; Riechel, S.; Holderer, O.; Feldmann, J.; Berleb, S.; Muckl, A. G.; Brutting, W.
2002. Journal of Applied Physics, 91 (10), 6367–6370

Precursor States for Charge Carrier Generation in Conjugated Polymers Probed by Ultrafast Spectroscopy
Lemmer, U.; Müller, J. G.; Feldmann, J.; Scherf, U.
2002. Physical Review Letters, 88 (14), 147401/1–4

Exciton dissociation dynamics in a conjugated polymer containing aggregate states
Lemmer, U.; Haugeneder, A.; Scherf, U.
2002. Chemical Physics Letters, 351 (5-6), 354–358

Lateral Patterning of CdTe Nanocrystal Films by the Electric Field Directed Layer-by-Layer Assembly Method
Lemmer, U.; Gao, M.; Sun, J.; Dulkeith, E.; Gaponik, N.; Feldmann, J.
2002. Langmuir, 18 (10), 4098–4102

Interaction of intermediate excited states and formation of free charge carriers under laser excitation of a conjugated polymer
Frankevich, E.; Mueller, J. G.; Lemmer, U.
2002. Chemical physics, 285 (1), 13–29

Formation dynamics of layer-by-layer self-assembled films probed by second harmonic generation
Breit, M.; Gao, M.; Von Plessen, G.; Lemmer, U.; Feldmann, J.; Cundiff, S. T.
2002. Journal of chemical physics, 117 (8), 3956–3960