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Zhenzhong Sun, Kai Xiao, Jong Kahk Keum, Xiang Yu, Kunlun Hong, Jim Browning, Ilia N. Ivanov, Jihua Chen, Jose Alonzo, Dawen Li, Bobby G. Sumpter, Edward A. Payzant, Christopher M. Rouleau and David B. Geohegan PS-b-P3HT Copolymers as P3HT/PCBM Interfacial Compatibilizers for High Efficiency Photovoltaics Advanced Materials 23

Article first published online: 18 NOV 2011 | DOI: 10.1002/adma.201103361

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A conducting diblock copolymer of PS-b-P3HT was added to serve as a compatibilizer in a P3HT/PCBM blend, which improved the power-conversion efficiency from 3.3% to 4.1% due to the enhanced crystallinity, morphology, interface interaction, and depth profile of PCBM.

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