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Royal Society of Chemistry, Polymer Chemistry, 6(7), p. 1226-1229, 2016

DOI: 10.1039/c5py01919b

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D-A copolymers with benzo[1,2-b:4,5-c']dithiophene-4,8-dione acceptor unit for polymer solar cells

Journal article published in 2015 by Xiaojuan Zhao, Liu Qian, Jiamin Cao, Shouke Yan, Liming Ding
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Two D–A copolymers PThBDTD and PTTBDTD with benzo[1,2-b:4,5-c′]dithiophene-4,8-dione (BDTD) as the acceptor unit and thiophene or thieno[3,2-b]thiophene as the donor unit were developed. They have medium optical bandgaps, deep HOMO levels, broad absorption and good hole mobilities. PThBDTD:PC71BM and PTTBDTD:PC71BM solar cells gave power conversion efficiencies (PCEs) of 6.32% and 6.00%, respectively.