Safa Shoaee, Selvam Subramaniyan, Hao Xin, Chaz Keiderling, Pabitra Shakya Tuladhar, Fiona Jamieson, Samson A. Jenekhe and James R. Durrant Charge Photogeneration for a Series of Thiazolo-Thiazole Donor Polymers Blended with the Fullerene Electron Acceptors PCBM and ICBA Advanced Functional Materials 23
A Model of charge separation from polymer singlet excitons, including both interfacial charge-transfer (CT) states, loosely bound polaron pairs and dissociated polarons is presented. For blend films where at least one material is relatively crystalline, efficient dissociation of photogenerated polarons is observed. For amorphous blend films, significant recombination of loosely bound polaron pairs is observed on the 100 ns timescale.
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