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Publications of 2012


  • P. Jahn, C. Neumann
    Objektive Stressmessung im Automobil – Validierung eines Messsystems
    , Ilmenau (2012)


  • Alberto {Montaigne Ramil}, G. Hernandez-Sosa, Thomas Griesser, Clemens Simbrunner, Thomas Höfler, Gregor Trimmel, Wolfgang Kern, Quan Shen, Christian Teichert, Günther Schwabegger, Helmut Sitter, Niyazi Serdar Sariciftci
    {Photo-Fries-based photosensitive polymeric interlayers for patterned organic devices.}
    Applied physics. A, Materials science \& processing 107, 985--993 (2012) [DOI] more


  • Clemens Simbrunner, G. Hernandez-Sosa
    {Color tuning of nanofibers by periodic organic–organic hetero-epitaxy}
    ACS nano 6, 4629--4638 (2012) more


  • Wei Lin Leong, G. Hernandez-Sosa, Sarah R Cowan, Daniel Moses, Alan J Heeger
    {Manifestation of carrier relaxation through the manifold of localized states in PCDTBT:PC60BM bulk heterojunction material: the role of PC84BM traps on the carrier transport.}
    Advanced Materials 24, 2273--7 (2012) [DOI] more


  • R. Kling
    Characterization and comparison of commercially available silicon carbide (SIC) power switches
    IET Conference Proceedings, 202-202(1) (2012) more


  • C. Kettwich, T. Nguyen, C. Neumann
    Führt dynamisches Kurvenlicht zu einer Veränderung des Blickverhaltens?
    20. Gemeinschaftstagung Licht 2012, Berlin (2012)


  • C. Kettwich, C. Fors
    Drivers’ visual behaviour at cycle crossings
    Human Factors of Systems and Technology, 265-276 (2012)


  • R. Kling, C. M. Ögün, H. Heuermann, M. Holtrupp
    Neuartige Quecksilberfreie Kompaktleuchtstofflampe
    LICHT 2012, 20. Gemeinschaftstagung, Berlin (2012)


  • R. Kling
    Moderne Lichtquellen - von der LED zur dimmbaren Hochdrucklampe
    Weimarer Lichttage WBA 5.2012, Weimar (2012)


  • R. Kling
    Potenziale und Grenzen der LED - eine Standortbestimmung
    LICHT 2012, 20. Gemeinschaftstagung, Berlin (2012)


  • S. Michenfelder, C. Neumann
    Entwicklung eines Projektor-basierten Forschungsscheinwerfers zur Erprobung neuartiger Lichtverteilungen
    LICHT 2012, Tagungsband der 20. Gemeinschaftstagung, Berlin (2012)


  • M. Theuring, J. Lacombe, K. Chakanga, R. Hünig, K. Huska, M. Vehse, K. von Maydell, U. Lemmer, C. Agert
    Computational investigation of silicon thin-film solar cells with grating structures fabricated by holographic lithography
    Proc. SPIE 8438, 84381Q (2012) [DOI]


  • S. Lampen, T. Bonenberger, J. Baumgart
    Simulation des Gefährdungspotentials lichtemittierender Dioden für das menschliche Auge
    Photonik Fachzeitschrift für die optischen Technologien 3 (2012)


  • T. Bonenberger, J. Baumgart
    Hybrid Collimating Optics for RGB-LEDs
    8th EOS Topical Meeting on Diffractive Optics, Poster session, Delft, Niederlande (2012)


  • T. F. Schulze, J. Czolk, Y. Cheng, B. Fückel, R. W. MacQueen, T. Khoury, M. J. Crossley, B. Stannowski, K. Lips, U. Lemmer, A. Colsmann, T. W. Schmidt
    Efficiency Enhancement of Organic and Thin-Film Silicon Solar Cells with Photochemical Upconversion
    The Journal of Physical Chemistry C 116, 22794 (2012) [DOI]


  • S. Wendel, J. Kurz, C. Neumann
    Optimizing nonimaging free-form optics using free-form deformation
    Proc. SPIE 8550, Optical Systems Design 2012, 85502T, 85502T-85502T-14 (2012) [DOI]


  • A. Pütz, F. Steiner, J. Mescher, M. Reinhard, N. Christ, D. Kutsarov, H. Kalt, U. Lemmer, A. Colsmann
    Solution processable, precursor based zinc oxide buffer layers for 4.5% efficient organic tandem solar cells
    Organic Electronics 13, 2696 - 2701 (2012) [DOI]


  • M. Reinhard, J. Conradt, M. Braun, A. Colsmann, U. Lemmer, H. Kalt
    Zinc oxide nanorod arrays hydrothermally grown on a highly conductive polymer for inverted polymer solar cells
    Synthetic Metals 162, 1582--1586 (2012) [DOI]


  • M. Pfaff, M. F. G. Klein, E. Müller, P. Müller, A. Colsmann, U. Lemmer, D. Gerthsen
    Nanomorphology of P3HT:PCBM-Based Absorber Layers of Organic Solar Cells after Different Processing Conditions Analyzed by Low-Energy Scanning Transmission Electron Microscopy
    Microscopy and Microanalysis 18, 1380--1388 (2012) [DOI]


  • S. Valouch, H. Sieber, S. W. Kettlitz, C. Eschenbaum, U. Hollenbach, U. Lemmer
    Direct fabrication of PDMS waveguides via low-cost DUV irradiation for optical sensing
    Opt. Express 20, 28855--28861 (2012) [DOI]


  • T. Bocksrocker, C. Eschenbaum, J. Preinfalk, J. Hoffmann, J. Asche-Tauscher, F. Maier-Flaig, U. Lemmer
    Novel nano- and micro-textures for highly efficient outcoupling in white organic light emitting diodes
    OSA Renewable Energy and the Environment Optics and Photonics Congress, Solid-State and Organic Lighting (SOLED), Eindhoven, Netherlands (2012) more


  • M. Bach, W. Heering
    NIR-laser based detection of the photopolymerization state of acrylate coatings suitable for in situ measurements
    Journal of Applied Polymer Science 124, 3494--3500 (2012) [DOI]


  • F. Herrmann, K. Trampert, C. Neumann
    Weiße LED-Systeme und Photometrie - Auswirkung der V(λ)-Fehlanpassung
    LICHT 2012, 20. Gemeinschaftstagung, Berlin (2012)


  • M. Perner, K. Trampert, C. Neumann
    Einfluss der thermischen Wechselwirkung auf das elektrische Verhalten von EVG-betriebenen LED-Retrofits
    LICHT 2012, 20. Gemeinschaftstagung, Berlin (2012)


  • K. Hähre, M. Meisser, F. Denk, R. Kling, W. Heering
    Switching Speed-Control of an Optimized Capacitor-Clamped Normally-On Silicon Carbide JFET Cascode
    15th International Power Electronics and Motion Control Conference, EPE-PEMC 2012 ECCE Europe, Novi Sad, Serbia (2012)


  • T. Bocksrocker, J. Preinfalk, J. Asche-Tauscher, A. Pargner, C. Eschenbaum, F. Maier-Flaig, U. Lemmer
    White organic light emitting diodes with enhanced internal and external outcoupling for ultra-efficient light extraction and Lambertian emission
    Opt. Express 20, A932--A940 (2012) [DOI]


  • M. Schneider, B. Leyrer, C. Herbold, S. Maikowske
    Packaging of High Power UV LED Modules on Ceramic and Aluminum Substrates
    45th International Symposium on Microelectronics (IMAPS), San Diego, USA (2012) more


  • M. Meisser, K. Messerschmidt, R. Kling
    MOSFET Matrix-Switch for Pulsed Operation of Plasma Optical Radiation Sources
    4th Euro-Asian Pulsed Power Conference and 19th International Conference on High-Power Particle Beams (EAPPC-BEAMS), Karlsruhe (2012) more


  • C. Herbold, C. Neumann
    Vorbild Natur: Bionische Strukturen zur Entwärmung von LEDs
    LICHT 2012, Tagungsband der 20. Gemeinschaftstagung, Berlin (2012)


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


  • S. Valouch, C. Hönes, S. W. Kettlitz, N. Christ, H. Do, M. F. G. Klein, H. Kalt, A. Colsmann, U. Lemmer
    Solution processed small molecule organic interfacial layers for low dark current polymer photodiodes
    Organic Electronics 13, 2727--2732 (2012) [DOI]


  • F. Maier-Flaig, E. J. Henderson, S. Valouch, S. Klinkhammer, C. Kübel, G. A. Ozin, U. Lemmer
    Photophysics of organically-capped silicon nanocrystals – A closer look into silicon nanocrystal luminescence using low temperature transient spectroscopy
    Chem. Phys. (2012) [DOI]


  • J. Mescher, N. Christ, S. W. Kettlitz, A. Colsmann, U. Lemmer
    Influence of the spatial photocarrier generation profile on the performance of organic solar cells
    Appl. Phys. Lett. 101, 073301 (2012) [DOI]


  • F. Nickel, M. Reinhard, Z. Zhang, A. Pütz, S. W. Kettlitz, U. Lemmer, A. Colsmann
    Solution processed sodium chloride interlayers for efficient electron extraction from polymer solar cells
    Appl. Phys. Lett. 101, 053309 (2012) [DOI]


  • C. M. Ögün, C. Kaiser, R. Kling
    Characterization of the Starting and Stabilization Processes Inside an Electrodeless Low Pressure Mercury Lamp Driven with Pulsed Mode Surface Waves
    39th IEEE International Conference on Plasma Science (ICOPS), Edinburgh, Great Britain (2012)


  • X. Liu, S. Klinkhammer, K. Sudau, N. Mechau, C. Vannahme, J. Kaschke, T. Mappes, M. Wegener, U. Lemmer
    Ink-Jet-Printed Organic Semiconductor Distributed Feedback Laser
    Appl. Phys. Express 5, 072101 (2012) [DOI]


  • M. F. G. Klein, F. Pasker, H. Wettach, I. Gadaczek, T. Bredow, P. Zilkens, P. Voehringer, U. Lemmer, S. Höger, A. Colsmann
    Oligomers Comprising 2-Phenyl-2H-Benzotriazole Building Blocks for Solution Processible Organic Photovoltaic Devices
    J. Phys. Chem. C 116, 16358–16364 (2012) [DOI]


  • C. Kaiser, C. M. Ögün, R. Kling
    Operating of electrode less, indium iodide based high intensity discharge lamps within the use of plasma guided microwaves
    39th IEEE International Conference on Plasma Science (ICOPS), Edinburgh, Great Britain (2012)


  • C. Kaiser, C. M. Ögün, R. Kling
    The Influence of Iodine Buffer in Indium(I) Iodide Based Electrodesless Mercury Free High Intensity Discharge Lamps driven by Guided Microwaves
    Proceedings of the 13th International Symposium on the Science and Technology of Lighting (LS13), Troy, USA (2012)


  • C. Kaiser, C. M. Ögün, R. Kling
    Electrodeless Mercury Free High Intensity Discharge Lamps with high Color Rendering Indices driven by Guided Microwaves
    Proceedings of the 13th International Symposium on the Science and Technology of Lighting (LS13), Troy, USA (2012)


  • C. M. Ögün, C. Kaiser, R. Kling
    Characterization of dual metal halide emission system by microwave driven mercury free low pressure lamps
    Proceedings of the 13th International Symposium on the Science and Technology of Lighting (LS13), Troy, USA (2012)


  • C. M. Ögün, M. Bach, C. Kaiser, R. Kling
    Characterization of transient processes inside an electrodeless low pressure mercury lamp driven with pulsed mode surface waves
    Proceedings of the 13th International Symposium on the Science and Technology of Lighting (LS13), Troy, USA (2012)


  • M. Schneider, B. Leyrer, C. Herbold, S. Maikowske, J. J. Brandner
    Index Matched Fluidic Packaging of High Power UV LED Clusters on Aluminum Substrates for Improved Optical Output Power
    IEEE 62nd Electronic Components and Technology Conference (ECTC), Proceedings, San Diego, USA (2012) [DOI]


  • S. Michenfelder, C. Neumann
    Entwicklung eines Projektor-basierten Forschungsscheinwerfers zur Erprobung neuartiger Lichtverteilungen
    VDI-Tagung Optische Technologien im Automobil, Karlsruhe (2012)


  • M. Scholdt, K. Trampert, C. Neumann
    Analyse des thermischen Degradationsverhaltens von LED Systemen
    LICHT 2012, Tagungsband der 20. Gemeinschaftstagung, Berlin (2012)


  • Yousef Nazirizadeh, T. Becker, Julia Reverey, Christine Selhuber-Unkel, Daniel H. Rapoport, U. Lemmer, Martina Gerken
    Photonic crystal slabs for surface contrast enhancement in microscopy of transparent objects
    Opt. Express 20, 14451--14459 (2012) [DOI]


  • N. Banerji, E. Gagnon, P. -Y. Morgantini, S. Valouch, A. R. Mohebbi, J. -H. Seo, M. Leclerc, A. J. Heeger
    Breaking Down the Problem: Optical Transitions, Electronic Structure, and Photoconductivity in Conjugated Polymer PCDTBT and in Its Separate Building Blocks
    J. Phys. Chem. C (2012) [DOI]


  • F. Nickel, C. Sprau, M. F. G. Klein, P. Kapetana, N. Christ, X. Liu, S. Klinkhammer, U. Lemmer, A. Colsmann
    Spatial mapping of photocurrents in organic solar cells comprising wedge-shaped absorber layers for an efficient material screening
    Solar Energy Materials and Solar Cells 104, 18--22 (2012) [DOI]


  • Z. Zhang, X. Tang, O. Kiowski, M. Hetterich, U. Lemmer, M. Powalla, H. Holscher
    Reevaluation of the beneficial effect of Cu(In,Ga)Se[sub 2] grain boundaries using Kelvin probe force microscopy
    Appl. Phys. Lett. 100, 203903 (2012) [DOI]


  • K. Hähre, M. Meisser, F. Denk, R. Kling
    Characterization and Comparison of Commercially Available Silicon Carbid (SiC) Power Switches
    6th International Conference on Power Electronics, Motion and Drives (PEMD2012), Bristol, UK (2012)


  • M. Meisser, K. Hähre
    Impedance Characterization of High-Frequency Gate Drive Circuits for Silicon RF MOSFET and Silicon-Carbide Field-Effect Transistors
    PCIM Europe, Nuremberg, Germany (2012) more


  • U. Bog, K. Huska, F. Maerkle, A. Nesterov-Mueller, U. Lemmer, T. Mappes
    Design of plasmonic grating structures towards optimum signal discrimination for biosensing applications
    Opt. Express 20, 11357--11369 (2012) [DOI]


  • M. Schneider, B. Leyrer, C. Herbold, S. Maikowske
    Aufbau und Verbindungstechnik für Hochleistungs-UV-LED-Module
    PLUS - Produktion von Leiterplatten und Systemen 4 (2012)


  • M. Meisser, K. Hähre, R. Kling
    Impedance Characterization of High Frequency Power Electronic Circuits
    PEMD conference, Bristol, UK (2012) more


  • S. Valouch, M. Nintz, S. W. Kettlitz, N. S. Christ, U. Lemmer
    Thickness-Dependent Transient Photocurrent Response of Organic Photodiodes
    Photonics Technology Letters, IEEE 24, 596 -598 (2012) [DOI]


  • S. Klinkhammer, X. Liu, K. Huska, Y. Shen, S. Vanderheiden, S. Valouch, C. Vannahme, S. Bräse, T.Mappes, U. Lemmer
    Continuously tunable solution-processed organic semiconductor DFB lasers pumped by laser diode
    Opt. Express 20, 6357--6364 (2012) [DOI]


  • T. Bocksrocker, F. Maier-Flaig, C. Eschenbaum, U. Lemmer
    Efficient waveguide mode extraction in white organic light emitting diodes using ITO-anodes with integrated MgF2-columns
    Opt. Express 20, 6170--6174 (2012) [DOI]


  • M. L. Mastronardi, F. Maier-Flaig, D. O. Faulkner, E. J. Henderson, C. Kübel, U. Lemmer, G. A. Ozin
    Size-Dependent Absolute Quantum Yields for Size-Separated Colloidally-Stable Silicon Nanocrystals
    Nano Lett. 12, 337 (2012)


  • A. Colsmann, M. Reinhard, T. -H. Kwon, C. Kayser, F. Nickel, J. Czolk, U. Lemmer, Noel Clark, J. Jasieniak, A. B. Holmes, D. Jones
    Inverted semi-transparent organic solar cells with spray coated, surfactant free polymer top-electrodes
    Solar Energy Materials and Solar Cells 98, 118 (2012) [DOI]


  • S. W. Kettlitz, S. Valouch, W. Sittel, U. Lemmer
    Flexible planar microfluidic chip employing a light emitting diode and a PIN-photodiode for portable flow cytometers
    Lab Chip 12, 197 (2012) [DOI]


  • M. F. G. Klein, M. Pfaff, E. Müller, J. Czolk, M. Reinhard, S. Valouch, U. Lemmer, A. Colsmann, D. Gerthsen
    Poly(3-hexylselenophene) solar cells: Correlating the optoelectronic device performance and nanomorphology imaged by low-energy scanning Transmission electron microscopy
    Journal of Polymer Science Part B: Polymer Physics 50, 198 (2012) [DOI]


  • B. Schmidt-Hansberg, M. Sanyal, N. Grossiord, Y. Galagan, M. Baunach, M. F. G. Klein, A. Colsmann, P. Scharfer, U. Lemmer, H. Dosch, J. Michels, E. Barrena, W. Schabel
    Investigation of non-halogenated solvent mixtures for high throughput fabrication of polymer–fullerene solar cells
    Solar Energy Materials and Solar Cells 96, 195–201 (2012) [DOI]


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