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 ％ ．
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%.
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