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Shanpeng Wen, Weidong Cheng, Pengfei Li, Shiyu Yao, Bin Xu, Hui Li, Yajun Gao, Zilong Wang and Wenjing Tian Synthesis and Photovoltaic Properties of Thieno[3,4-c]pyrrole-4,6-dione-based donor–acceptor Copolymers Journal of Polymer Science Part A: Polymer Chemistry 50

Version of Record online: 31 MAY 2012 | DOI: 10.1002/pola.26164

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A series of novel 1,3-di(thien-2-yl)thieno[3,4-c]pyrrole-4,6-dione–based donor-acceptor polymers [(poly{9,9-dioctylfluorene-2,7-diyl-alt-1,3-bis(4-hexylthien-2-yl)-5-octylthieno [3,4-c]pyrrole-4,6-dione}, poly{N-(1-octylnonyl)carbazole-2,7-diyl-alt-1,3-bis(4-hexylthien-2-yl)-5-octylthieno[3,4-c]pyrrole-4,6-dione}, and poly{4,8-bis(2-ethylhexyloxyl) benzo[1,2-b:3,4-b′]dithiophene-alt-1,3-bis(4-hexylthien-2-yl)-5-octylthieno[3,4-c] pyrrole-4,6-dione} (PBDT-DTTPD)]PF-DTTPD, PC-DTTPD, and PBDT-DTTPD) consisting of different electron-rich donors in main-chains were synthesized. The PSC device containing the blend of donor PBDT-DTTPD and acceptor in 1:2 weight ratio showed the highest PCE value of 3.11% with Voc = 0.90 V, Jsc = 6.11 mA/cm2, and FF fill factor = 0.56.

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