Abstract
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.
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