H
Hans-Joachim Egelhaaf
Researcher at Forschungszentrum Jülich
Publications - 115
Citations - 7148
Hans-Joachim Egelhaaf is an academic researcher from Forschungszentrum Jülich. The author has contributed to research in topics: Organic solar cell & Fluorescence spectroscopy. The author has an hindex of 44, co-authored 107 publications receiving 6477 citations. Previous affiliations of Hans-Joachim Egelhaaf include University of Tübingen & École Polytechnique Fédérale de Lausanne.
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Optical Bandgaps of π‐Conjugated Organic Materials at the Polymer Limit: Experiment and Theory
TL;DR: In this paper, the extreme care that must be taken when predicting the optical properties of conjugated polymers via the oligomer approach, and when comparing theoretical and experimental data, is illustrated.
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Tuning of Fluorescence in Films and Nanoparticles of Oligophenylenevinylenes
Dieter Oelkrug,Alfred Tompert,Johannes Gierschner,Hans-Joachim Egelhaaf,Michael Hanack,Michael Hohloch,Elke Steinhuber +6 more
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Influence of the bridging atom on the performance of a low-bandgap bulk heterojunction solar cell.
Markus C. Scharber,Markus Koppe,Jia Gao,Fabrizio Cordella,Maria Antonietta Loi,Patrick Denk,Mauro Morana,Hans-Joachim Egelhaaf,Karen Forberich,Gilles Dennler,Russ Gaudiana,Dave Waller,Zhengguo Zhu,Xiaobo Shi,Christoph J. Brabec +14 more
TL;DR: This silole-based polymer is found to form a highly functional nanomorphology when blended with [6,6]-phenyl C71-butyric acid methyl ester (C70-PCBM), and solar cells prepared using this blend gave efficiencies of 5.2%, certified by the National Renewable Energy Laboratory.
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Near IR Sensitization of Organic Bulk Heterojunction Solar Cells: Towards Optimization of the Spectral Response of Organic Solar Cells
Markus Koppe,Hans-Joachim Egelhaaf,Gilles Dennler,Markus C. Scharber,Christoph J. Brabec,Pavel Schilinsky,Claudia N. Hoth +6 more
TL;DR: In this article, the spectroscopic response of a poly(3-hexylthiophene)/[6,6]-phenyl-C 61 -butyric acid methyl ester (P3HT/PCBM)-based bulk heterojunction solar cell is extended into the near infrared region (NIR) of the spectrum by adding the low bandgap polymer poly [2,6-(4,4-bis-(2-ethylhexyl)-4H-ryclopenta[2,1-b;3, 4-6]-dith
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Luminescence and nonradiative deactivation of excited states involving oxygen defect centers in polycrystalline ZnO
TL;DR: The green luminescence of polycrystalline ZnO is investigated by diffuse reflection, steady state and time-resolved photoluminescence as well as photoconductivity and is assigned to a donor-acceptor-type transition.