Doktorprüfung

Topic: Light management for quantum dot based optoelectronics

Oral exam: 31.10.2024
Referee: Prof. Dr. rer. nat. Uli Lemmer
2nd Referee: apl.-Prof. Dr. rer. nat. Hendrik Hölscher (KIT - Institut für Mikrostrukturtechnik - IMT)

Publications

2025

Nanopores in the ventral scales of Bitis rubida and Bitis armata cause white venters
Reza, K. M. S.; Borgmann, L. M.; Busko, D.; Chen, J.; Gunstheimer, H.; Thelen, R.; Gomard, G.; Lemmer, U.; Hölscher, H.
2025. Biology Letters, 21 (5). doi:10.1098/rsbl.2025.0141

2024

Quantum-Dot-Based Optoelectronics for Spectral Conversion. PhD dissertation
Chen, J.
2024, November 7. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000175887

Nanopores in ventral scales cause white venters for the thermoregulations of snakes
Reza, K. S.; Borgmann, L. M.; Chen, J.; Gunstheimer, H.; Thelen, R.; Gomard, G.; Lemmer, U.; Hölscher, H.
2024, September 10. doi:10.35097/gq3dtqkj9u3dfe09

Enhanced photoluminescence of a microporous quantum dot color conversion layer by inkjet printing
Chen, J.; Jin, Q.; Donie, Y. J.; Perales, O. T.; Busko, D.; Richards, B. S.; Lemmer, U.
2024. Nano Research, 17, 7717–7725. doi:10.1007/s12274-024-6671-9

Organosilicon-Based Ligand Design for High-Performance Perovskite Nanocrystal Films for Color Conversion and X-ray Imaging
Chen, J.; Jiang, G.; Hamann, E.; Mescher, H. I.; Jin, Q.; Allegro, I.; Brenner, P.; Li, Z.; Gaponik, N.; Eychmüller, A.; Lemmer, U.
2024. ACS Nano, 18 (14), 10054–10062. doi:10.1021/acsnano.3c11991

Inkjet-printed optical interference filters
Jin, Q.; Zhang, Q.; Rainer, C.; Hu, H.; Chen, J.; Gehring, T.; Dycke, J.; Singh, R.; Paetzold, U. W.; Hernández-Sosa, G.; Kling, R.; Lemmer, U.
2024. Nature Communications, 15 (1), Article no: 3372. doi:10.1038/s41467-024-47086-x

2023

A Review on Quantum Dot‐Based Color Conversion Layers for Mini/Micro‐LED Displays: Packaging, Light Management, and Pixelation
Chen, J.; Zhao, Q.; Yu, B.; Lemmer, U.
2023. Advanced Optical Materials, 12 (2), Art.-Nr.: 2300873. doi:10.1002/adom.202300873

Recent Progress in Light‐Scattering Porous Polymers and Their Applications
Yu, S.; Chen, J.; Gomard, G.; Hölscher, H.; Lemmer, U.
2023. Advanced Optical Materials, 11 (13), Art.-Nr.: 2203134. doi:10.1002/adom.202203134

2022

The kapok petal: superhydrophobic surface induced by microscale trichomes
Chen, J.; Yu, S.; Fu, T.; Xu, L.; Tang, Y.; Li, Z.
2022. Bioinspiration & biomimetics, 17 (2), Art. Nr.: 026007. doi:10.1088/1748-3190/ac392e

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

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, October. 6th Smart Materials and Surfaces (SMS 2021), Milan, Italy, October 20–22, 2021

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

2020

Numerical study on the scattering property of porous polymer structures via supercritical CO2 microcellular foaming
Yu, S.; Yu, J.; Chen, J.; Ding, X.; Li, J.; Rao, L.; Tang, Y.; Li, Z.
2020. Applied optics, 59 (14), 4533–4541. doi:10.1364/AO.391449

Highly scattering porous films by polymerization-induced phase separation and application on light-emitting diodes
Yu, S.; Chen, J.; Wu, K.; Tang, Y.; Li, Z.
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)

Bioinspired high-scattering polymer films fabricated by polymerization-induced phase separation
Tang, Y.; Wu, K.; Yu, S.; Chen, J.; Ding, X.; Rao, L.; Li, Z.
2020. Optics letters, 45 (10), 2918–2921. doi:10.1364/OL.390639

2019

White hairy layer on the leaf—inspiration for reflective coatings
Yu, S.; Chen, J.; Liang, G.; Ding, X.; Tang, Y.; Li, Z.
2019. Bioinspiration & biomimetics, 15 (1), Art.-Nr. 016003. doi:10.1088/1748-3190/ab5151

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

2018

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