Photovoltaics of donor–acceptor polymers based on benzodithiophene with lateral thiophenyl and fluorinated benzothiadiazole

Abstract

A low band gap alternative polymer was synthesized. The polymer contained benzodithiophenes with lateral thiophenes and fluorinated benzothiadiazole. The polymer possessed broad absorption and high Voc. The PCE of the device with PC61BM achieved 4.8% without annealing and additive. Additional Supporting Information may be found in the online version of this article. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.