Feiyan Wu, Daijun Zha, Lie Chen and Yiwang Chen Photovoltaics of donor–acceptor polymers based on benzodithiophene with lateral thiophenyl and fluorinated benzothiadiazole Journal of Polymer Science Part A: Polymer Chemistry 51
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.
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