Delayed luminescence spectroscopy of organic photovoltaic binary blend films: Probing the emissive non-geminate charge recombination

Please use this identifier to cite or link to this item: 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
Appears in Collections:	Άρθρα/Articles

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