Phosphole‐ and Benzodithiophene‐Based Copolymers: Synthesis and Application in Organic Photovoltaics
作者:Yoshihiro Matano、Hiroshi Ohkubo、Tetsushi Miyata、Yusuke Watanabe、Yukiko Hayashi、Tomokazu Umeyama、Hiroshi Imahori
DOI:10.1002/ejic.201301132
日期:2014.4
AbstractTwo kinds of phosphole‐ and benzodithiophene‐based copolymers bearing PV=O or PV=NSO2C8H17 functions were prepared by Pd–CuI‐promoted Stille coupling reactions, and their optical and electrochemical properties were investigated. Bulk heterojunction organic photovoltaic devices comprised of the new P,S‐bridged copolymers and (6,6)‐phenyl‐C71‐butyric acid methyl ester (PC71BM) exhibited power conversion efficiencies of up to 0.65 % under AM1.5 irradiation at 100 mW cm–2.