Chin. J. Org. Chem. ›› 2019, Vol. 39 ›› Issue (9): 2589-2598.DOI: 10.6023/cjoc201902023 Previous Articles     Next Articles



周鑫云, 谢凌超, 吴凯乐, 谭松庭   

  1. 湘潭大学化学学院 教育部环境友好化学与应用重点实验室 湘潭 411105
  • 收稿日期:2019-02-21 修回日期:2019-04-14 发布日期:2019-04-19
  • 通讯作者: 谭松庭
  • 基金资助:


Synthesis and Photovoltaic Properties of Organic Dyes Containing Dendritic and 3D Triphenylamine Derivatives

Zhou Xinyun, Xie Lingchao, Wu Kaile, Tan Songting   

  1. Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105
  • Received:2019-02-21 Revised:2019-04-14 Published:2019-04-19
  • Contact: 10.6023/cjoc201902023
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21875204, 51173154).

Three organic dyes with dendritic and 3D triphenylamine derivatives as the donor unit, benzoic acid as the acceptor unit and benzothiadiazole (BT) or difluorobenzothiadiazole (DFBT) as the second acceptor were designed and synthesized. The influences of different donors and second acceptors on the photophysical, electrochemical and photovoltaic properties of dye-sensitizers were systematically investigated. The organic dye with dendritic triphenylamine derivative as a donor unit possesses a higher molar absorption coefficient, and the organic dye with 3D triphenylamine derivative (IDTTPA) as a donor unit has a broader absorption spectrum. The dye-sensitized solar cells based on three organic dyes achieved power conversion efficiencies of 5.27%, 4.22% and 5.50%, respectively. After optimizing the battery with 1 mmol·L-1 co-adsorbent chenodeoxycholic acid (CDCA), the power conversion efficiencies of the organic dyes were increased to 5.46%, 4.98% and 6.26%, respectively.

Key words: triphenylamine, benzothiadiazole, organic dye, photovoltaic property