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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (7): 667-671. 上一篇    下一篇

研究论文

Ru(II)染料与聚3-甲基噻吩复合敏化纳米结构TiO2电极的光电化学研究

郝彦忠*,1，武文俊2，戴松元3   

  1. (1河北科技大学理学院 石家庄 050018)
    (2华东理工大学先进材料和精细化学研究所 上海 200237)
    (3中国科学院等离子体物理研究所 合肥 230031)
  • 投稿日期:2005-04-06 修回日期:2005-12-05 发布日期:2006-04-15
  • 通讯作者: 郝彦忠

Photoelectrochemical Study of Nanostructured TiO2 Film Electrode with Ru(II) Sensitizer and Poly(3-methylthiophene) Composite Sensitization

HAO Yan-Zhong*,1, WU Wen-Jun2, DAI Song-Yuan3   

  1. (1 College of Science, Hebei University of Science and Technology, Shijiazhuang 050018)
    (2 Laboratory for Advanced Materials and Instiute of Fine Chemicals, East China University of
    Science and Technology, Shanghai 200237)
    (3 Instiute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)
  • Received:2005-04-06 Revised:2005-12-05 Published:2006-04-15
  • Contact: HAO Yan-Zhong

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利用光电流作用谱、循环伏安等光电化学方法研究了染料RuL2(SCN)2: 2TBA (L＝2,2'-bipydine-4,4'-dicarboxylic acid)与聚3-甲基噻吩(P3MT)复合敏化电极的光电化学性质. RuL2(SCN)2: 2TBA/P3MT复合敏化TiO2纳米晶多孔膜电极比染料RuL2(SCN)2: 2TBA敏化TiO2纳米结构电极的光电转换效率大幅度提高. 复合敏化电极中存在p-n异质结有效地抑制了电子的反向复合, 减少了电子的损失.

关键词: 复合敏化, 光电化学, 导电聚合物

The photo-current conversion properties of the nanostructured ITO/TiO2/RuL2(SCN)2: 2TBA and ITO/TiO2/RuL2(SCN)2: 2TBA/P3MT (L＝2,2'-bipydine-4,4'-dicarboxylic acid) electrode were studied by the photocurrent action spectra, the photocurrent dependence of potential, cyclic voltammety and UV-Vis absorption spectra. The composite sensitization could avoid the back electron transfer and loss of electrons. The photo-current conversion efficiency of ITO/TiO2/RuL2(SCN)2: 2TBA/P3MT was improved compared with that of ITO/TiO2/RuL2(SCN)2: 2TBA.

Key words: composite sensitization, photoelectrochemistry, conducting polymer