Acta Chimica Sinica ›› 1999, Vol. 57 ›› Issue (10): 1129-1135.

Original Articles

### 五甲川菁染料敏化SnO~2纳米结构多孔膜电极的光电化学研究

1. 北京大学化学与分子工程学院;华东理工大学精细化工研究所
• 发布日期:1999-10-15

### Photoelectrochemical studies on the SnO~2 nanostructured porous film sensitized by cyanine dye

Zhang Li;Yang Maizhi;Qiao Xuebin;Hao Yanzhong;Wang Yanqin;Cai Shengmin;Meng Fanshun;Tian He

• Published:1999-10-15

The photoelectrochemical behaviors of the SnO~2 nanostructured porous film sensitized by cyanine dye were investigated. The ground state level and the excited state level of the dye were determined by using the cyclic voltammetry and the optical absorption spectroscopy. The results show that the excitation state level matches the conduction band edge of SnO~2 nanoparticle. Therefore the sensitization of this dye can increase the photocurrent intensity of SnO~2 nanostructured electrode obviously and results in a red-shift of optical absorption from the ultra-violet region to the visible and near infrared region. As a result, the light-to-electricity conversion efficiency is improved evidently and the maximum value of IPCE has reached 45.7%.

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