CAJ | 학술논문

采用新染料五甲川菁(Penta Methyl Cyanine)敏化TiO2纳米结构电极，UV-Vis吸收光谱和光电化学结果表明，使用该染料敏化使TiO2纳米结构电极吸收波长红移至可见光区和近红外区，可显著地提高TiO2纳米结构电极在可见光区的阳极光电流强度，明显改善光电转换效率.结合吸收光谱、电化学和光电化学结果初步讨论了敏化电极的光生电流的机理.
채용신염료오갑천정(Penta Methyl Cyanine)민화TiO2납미결구전겁，UV-Vis흡수광보화광전화학결과표명，사용해염료민화사TiO2납미결구전겁흡수파장홍이지가견광구화근홍외구，가현저지제고TiO2납미결구전겁재가견광구적양겁광전류강도，명현개선광전전환효솔.결합흡수광보、전화학화광전화학결과초보토론료민화전겁적광생전류적궤리.
he photoelectrochemical behavior of the TiO2 nanostructured porous film sensitized by pentamethylcyanine dye was 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 showed that the excitation state level matched the conduction band edge of TiO2 nanoparticle. Therefore, the sensitization of this dye can increase the photocurrent intensity of TiO2 nanostructured electrode obviously and results in a red-shift of optical absorption from the ultra-violet region to the visible and near infra-red region. As a result, the light-to-electricity conversion efficiency was improved evidently.