物理化学学报 >> 1998, Vol. 14 >> Issue (09): 841-845.doi: 10.3866/PKU.WHXB19980914

研究论文 上一篇    下一篇

硫化物/Ru(II)络合物复合敏化TiO2纳米多孔膜

李卫华, 郝彦忠, 乔学斌, 王艳琴, 杨迈之, 程虎民, 蔡生民   

  1. 北京大学化学与分子工程学院,北京 100871
  • 收稿日期:1997-12-30 修回日期:1998-05-08 发布日期:1998-09-15
  • 通讯作者: 杨迈之

A Photoelectrochemistry Study of the Photosensitization of Composite Sulfides and Ru(II) Complex for TiO2 Nanoporous Film Electrode

Li Wei-Hua, Hao Yan-Zhong, Qiao Xue-Bin, Wang Yan-Qin, Yang Mai-Zhi, Cheng Hu-Min, Cai Sheng-Min   

  1. College of Chemistry and Molleculr Engineering,Peking University,Beijing 100871
  • Received:1997-12-30 Revised:1998-05-08 Published:1998-09-15
  • Contact: Yang Mai-Zhi

摘要:

用光电化学方法研究了Cds、Pbs和RuL2(NCS)2(L=2.2′-bipydine-4.4′-dicarboxylic acid)复合敏化TiO2纳米晶电极的光电化学行为.结果表明,采用复合敏化比用Ru(Ⅱ)络合物单独敏化TiO2纳米晶电极效果好,大大提高了光电转换效率.主要原因是采用复合敏化,可防止TiO2导带上由光注入产生的电子的反向转移,避免了电子的损失.

关键词: TiO2纳米多孔膜电极, 光敏化, 光电化学

Abstract:

Photosensitization by composite sulfides and Ru(Ⅱ) complex for TiO2 nanoporous film was investigated with photoelectrochemical methods. The results showed that the conversion efficiency of light to electricity was greatly improved. This could be explained that in the case of this type of photosensitization, the back electron transfer from the TiO2 conduction band to the solution was refrained, thus the loss of electrons was avoided.

Key words: TiO2 nanoporous film electrode, Photosensitization, Photoelectrochemistry