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https://hdl.handle.net/20.500.14279/18254| Title: | Delayed luminescence spectroscopy of organic photovoltaic binary blend films: Probing the emissive non-geminate charge recombination | Authors: | Keivanidis, Panagiotis E. Kamm, Valentin Dyer-Smith, Clare Zhang, Weimin Laquai, Frédéric McCulloch, Iain Bradley, Donal D.C. Nelson, Jenny |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Keywords: | bulk heterojunction;charge transfer;delayed luminescence;microstructure;non-geminate charge recombination;Solar cells | Issue Date: | 1-Dec-2010 | Source: | Advanced Materials, 2010, vol. 22, iss. 45, pp. 5183-5187 | Volume: | 22 | Issue: | 45 | Start page: | 5183 | End page: | 5187 | Journal: | Advanced Materials | Abstract: | Organic photovoltaics: Following the direct photoexcitation of the low-energy optical gap PDI component in the F8BT:PDI photovoltaic blend film (step 1), charge generation takes place (steps 2, 3). Non-geminate charge recombination (step 4) results in the generation of delayed luminescence (DL) in the μs time scale (step 5). The DL spectrum originates from an equilibrated charge-transfer (CT) state formed between the components of the composite. The F8BT-PDI CT complex has a ground state character (step 6). Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | ISSN: | 15214095 | DOI: | 10.1002/adma.201002389 | Rights: | © John Wiley & Sons, Inc. All rights reserved | Type: | Article | Affiliation : | Imperial College London Max Planck Institute |
Publication Type: | Peer Reviewed |
| Appears in Collections: | Άρθρα/Articles |
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