Anthracene-based donor–acceptor low band gap polymers for application in solar cells

Abstract

The preparation of anthracene-based low band gap conjugated polymers comprising 2,6-linked anthracene and dithienyl-benzo[c][1,2,5]thiadiazole or dibithiophenyl-benzo[c][1,2,5]thiadiazole alternate repeat units is presented. The photophysical, electrochemical and photovoltaic properties of the polymers in bulk heterojunction solar cells using PC71BM as an acceptor are discussed. © 2013 The Royal Society of Chemistry.