Sulfonyl: a new application of electron-withdrawing substituent in highly efficient photovoltaic polymer |
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| Authors: | Huang Ye Huo Lijun Zhang Shaoqing Guo Xia Han Charles C Li Yongfang Hou Jianhui |
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| Institution: | State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. |
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| Abstract: | A strong electron-withdrawing group, sulfonyl, was firstly introduced to a semiconducting polymer, PBDTTT-S. The PCE of the PBDTTT-S device reached 6.22% with a high open-circuit voltage of 0.76 V. The sulfonyl group is thus a promising candidate as a strong electron-withdrawing group applied to high-efficiency PSCs. |
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