PS-b-P3HT copolymers as P3HT/PCBM interfacial compatibilizers for high efficiency photovoltaics.

Sun, Zhenzhong; Xiao, Kai; Keum, Jong Kahk; Yu, Xiang; Hong, Kunlun; Browning, Jim; Ivanov, Ilia N; Chen, Jihua et al. · Adv Mater · 2011

basic_science · Level V

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Abstract

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.

Medical subject headings