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Hongmei Qin, Lisheng Li, Tianxiang Liang, Xiaobin Peng, Junbiao Peng and Yong Cao Donor–acceptor (donor) polymers with differently conjugated side groups at the acceptor units for photovoltaics Journal of Polymer Science Part A: Polymer Chemistry 51

Version of Record online: 5 JAN 2013 | DOI: 10.1002/pola.26526

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Four D-A polymers with the same main chain based on benzodithiophene and quinoxaline but with differently conjugated donor groups at the acceptor units are synthesized to investigate the impact of the conjugated side chains at the acceptor units on the photovoltaic properties of D-A polymers. The performance of the solar cells increases when thienyl or phenylene thienyl groups are used, but decreases when additional thienyl groups are added at the side chains.

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