Chemical Communications

Benzo [1, 2-b: 4, 5-b′] dithiophene-dioxopyrrolothiophen copolymers for high performance solar cells

G Zhang, Y Fu, Q Zhang, Z Xie

Index: Zhang, Guobing; Fu, Yingying; Zhang, Qing; Xie, Zhiyuan Chemical Communications, 2010 , vol. 46, # 27 p. 4997 - 4999

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Citation Number: 151

Abstract

New donor/acceptor polymers PBDTDPT1 and PBDTDPT2 with alternating benzodithiophene and N-alkylated dioxopyrrolo-thiophene were synthesized. The new polymers had deep HOMO levels of− 5.42 and− 5.44 eV for PBDTDPT1 and PBDTDPT2, respectively. A PBDTDPT2 based BHJ solar cell device achieved a PCE of 4.79% and Voc of 0.91 V.