Structural regulation of thiophene-fused benzotriazole as a “π-bridge” for A-π-D-π-A type acceptor:P3HT-based OSCs to achieve high efficiency

Abstract

Fine structural regulation of a thiophene-fused benzotriazole unit as a “π-bridge” yields a new A-π-D-π-A acceptor to achieve very balanced J_SC and V_OC for P3HT-based OSCs, leading to a high PCE of 7.72%.