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Selvam Subramaniyan, Hao Xin, Felix Sunjoo Kim, Safa Shoaee, James R. Durrant and Samson A. Jenekhe Effects of Side Chains on Thiazolothiazole-Based Copolymer Semiconductors for High Performance Solar Cells Advanced Energy Materials 1

Version of Record online: 14 JUN 2011 | DOI: 10.1002/aenm.201100215

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New copolymer semiconductors, based on thiazolothiazole and dithienosilole moieties (PSOTT, PSEHTT and PSOxTT), were synthesized and used to demonstrate effects of side chains on the performance of solar cells. Solar cells under one sun illumination showed an average power conversion efficiency of 2.1% (PSOxTT), 4.1% (PSOTT) and 5.0% (PSEHTT), demonstrating the dramatic effects of the type and topology of side chains.

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