Effect of dihedral angle of bridge unit on the performance of dye-sensitized solar cell

Yun Wua Xin Li

引用本文: Yun Wua,  Xin Li. Effect of dihedral angle of bridge unit on the performance of dye-sensitized solar cell[J]. Chinese Chemical Letters, 2016, 27(6): 927-932. doi: 10.1016/j.cclet.2016.04.010 shu
Citation:  Yun Wua,  Xin Li. Effect of dihedral angle of bridge unit on the performance of dye-sensitized solar cell[J]. Chinese Chemical Letters, 2016, 27(6): 927-932. doi: 10.1016/j.cclet.2016.04.010 shu

Effect of dihedral angle of bridge unit on the performance of dye-sensitized solar cell

摘要: In this work, we investigated the impact of bridge unit on their photo-physical and photovoltaic performance. Increased planarity of the dyes effectively extended the absorption, but reduces the efficiency. Interestingly we found that dyes with a thiophene conjugate unit showed inferior performance when compared with benzene. Theoretical computation indicates a large dihedral angle in the latter system. EIS analysis evidenced the severe recombination in the thiophene-based dye, showing that good planarity may lead to dye aggregation and decrease the efficiency.

English

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  • 收稿日期:  2016-03-02
  • 修回日期:  2016-04-01
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