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电化学(中英文) ›› 1999, Vol. 5 ›› Issue (4): 377-382. 

• 研究论文 • 上一篇    下一篇

三甲川菁染料敏化TiO_2纳米结构电极的光电化学

张莉,杨迈之,乔学斌,郝彦忠,高恩勤,蔡生民,孟凡顺,田禾   

  1. 北京大学化学与分子工程学院!北京100871,北京大学化学与分子工程学院!北京100871,北京大学化学与分子工程学院!北京100871,北京大学化学与分子工程学院!北京100871,北京大学化学与分子工程学院!北京100871,北京大学化学与分子工程学院!北京100871,华东理工大学精细化工研究所!
  • 收稿日期:1999-11-28 修回日期:1999-11-28 出版日期:1999-11-28 发布日期:1999-11-28

Photoelectrochemical Studies on the TiO_2 Nanostructured Porous Film Sensitized by Cyanine Dye

Zhang Li Yang Maizhi * Qiao Xuebin Hao Yanzhong Gao Enqing Cai Shengmin   

  1. (College of Chenistry and Molecular Engineering,Peking University,Beijing 100871) Meng Fanshum Tian He (Institute of Fine Chemicals,East China University of Science
  • Received:1999-11-28 Revised:1999-11-28 Published:1999-11-28 Online:1999-11-28

摘要: 研究了三甲川菁染料敏化TiO2 纳米结构电极的光电化学行为.结果表明,使用该染料敏化可显著提高TiO2 纳米结构电极的光电流,使电极的吸收波长红移至可见光区,光电转换效率得到明显改善,IPCE值最高可达12-1 % .

关键词: 染料敏化, TiO_2纳米结构多孔膜电极, 光电化学, 光电转换

Abstract: The photoelectrochemical behaviors of the TiO 2 nanostructured porous film sensitized by cyanine dye were investigated in this paper.The results showed that the excitaed state level matched the conduction band edge of TiO 2 nanoparticle.Therefore the sensitization of the dye can increase the photocurrent intensity of the TiO 2 nanostructured electrode obviously and results in a red-shift of optical absorption from the ultra_violet region to the visible.As a result,the light_to _electricity conversion efficiency was improved evidently,the maximum value of IPCE has reached 12.1%.

Key words: Dye sensitization, TiO 2 nanostructured porous film electrode, Photoelectrochemisty, Cyanine dye

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