Chin. J. Org. Chem. ›› 2017, Vol. 37 ›› Issue (11): 2940-2947.DOI: 10.6023/cjoc201704045 Previous Articles     Next Articles

Articles

以苯并噻二唑为辅助受体的N-苯基咔唑类染料敏化剂的合成及光伏性能

韩亮a, 吴靓a, 童永正a, 祖晓燕a, 蒋绍亮a,b   

  1. a 浙江工业大学化工学院 杭州 310017;
    b 浙江工业大学药学院 杭州 310017
  • 收稿日期:2017-04-27 修回日期:2017-07-13 出版日期:2017-11-25 发布日期:2017-08-11
  • 通讯作者: 蒋绍亮 E-mail:jslarticle@163.com
  • 基金资助:

    国家自然科学基金(No.21406202)资助项目.

Syntheses and Photovoltaic Performance of N-Phenylcarbazole Sensitizers with Benzothiadiazole Auxiliary Acceptor

Han Lianga, Wu Lianga, Tong Yongzhenga, Zu Xiaoyana, Jiang Shaolianga,b   

  1. a College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310017;
    b College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310017
  • Received:2017-04-27 Revised:2017-07-13 Online:2017-11-25 Published:2017-08-11
  • Contact: 10.6023/cjoc201704045 E-mail:jslarticle@163.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21406202).

Four N-phenylcarbazole sensitizers were designed and synthesized with N-phenylcarbazole as the electron donor, benzothiadiazole as the auxiliary acceptor, thiophene or benzene as π bridge, cyanoacetic acid or rhodanine acetic acid as the an-choring acceptor. The spectral properties and photovoltaic performance of the sensitizers were investigated. Though with short maximum absorption wavelength and low molar extinction coefficient, dyes with cyanoacetic acid acceptor show higher electron injection efficiency than dyes with rhodanine acetic acid acceptor, and hence obtain superior photocurrent and photovoltage. Dyes with benzene bridge exhibit higher photocurrent and photovoltage than dyes with thiophene bridge. Therefore, among four sensitizers, dye with benzene bridge and cyanoacetic acid acceptor obtains better photoelectric conversion efficiency of 5.28% (JSC=9.14 mA/cm2, VOC=0.74 V, FF=0.78).

Key words: N-phenylcarbazole, benzothiadiazole, synthesis, spectral property, photoelectric conversion efficiency