A star-shaped oligothiophene end-capped with alkyl cyanoacetate groups for solution-processed organic solar cells |
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| Authors: | Yuze Lin Zhi-Guo Zhang Huitao Bai Yongfang Li Xiaowei Zhan |
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| Affiliation: | Beijing National Laboratory for Molecular Sciences and Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. xwzhan@iccas.ac.cn. |
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| Abstract: | A star-shaped oligothiophene based on triphenylamine as a core and 2-ethylhexyl cyanoacetate as end groups (S(TPA-3T-CA)) was synthesized. S(TPA-3T-CA) exhibited strong absorption and high hole mobility. Solution-processed solar cells based on S(TPA-3T-CA):PC(71)BM showed a power conversion efficiency of 3.60% and a fill factor of 0.56. |
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