Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/18254
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: 1521-4095
DOI: 10.1002/adma.201002389
Rights: © John Wiley & Sons, Inc. All rights reserved
Type: Article
Affiliation : Imperial College 
Max Planck Institute for Polymer Research 
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