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Wiley, Macromolecular Chemistry and Physics, 11(212), p. 1109-1114, 2011

DOI: 10.1002/macp.201100060

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Synthesis and Photovoltaic Properties of a Poly(2,7-carbazole) Derivative Based on Dithienosilole and Benzothiadiazole

Journal article published in 2011 by Jiaoyan Zhou, Xiangjian Wan, Yongsheng Liu ORCID, Fei Wang, Guankui Long, Chenxi Li, Yongsheng Chen ORCID
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This paper is available in a repository.

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Abstract

A low bandgap poly(2,7-carbazole) derivative PCDSBT containing dithienosilole and benzothiadiazole is synthesized by Stille polymerization. The incorporation of dithienosilole and carbazole causes PCDSBT to have a broad absorption from 350 to 800nm and a relatively low HOMO level. Solar cell devices fabricated by blending PCDSBT with [6,6]-phenyl-C(61)-butyric acid methyl ester (PC(61)BM) at a 1: 2 weight ratio in a mixed solvent of 3% (by volume), 1,8-diiodooctane, and 97% dichlorobenzene lead to a power conversion efficiency of 1.65% under the illumination of AM 1.5G (100mW.cm(-2)).