摘要
在锐钛矿 TiO_2 薄电影上吸收的 Ru (ll ) 建筑群的单层的导致相片的降级被使用反响的 micro-Raman 光谱学学习。在激光并且当还原剂不在时的强烈轻放射下面,染料快速分解了。当敏化 thedye 的 TiO_2 薄电影电极被还原剂盖住时,也就是, l~-/l_3~- 氧化还原作用联合,导致相片的分解率被 approx10~6 的一个因素减缓。在两个盒子中,染料在一条指数的法律下面与时间分解了。
Photo-induced degradation of a monolayer of Ru(Ⅱ) complex absorbed on anatase TiO2 thin film was studied by using resonant micro-Raman spectroscopy. Under intense light radiation of a laser and in the absence of a reducing agent, the dye decomposed quickly. When the dye-sensitized TiO2 thin film electrode was covered by a reducing agent, namely the I^-/I3^- redox couple, the photo-induced decomposing rate was slowed by a factor of -10^6. In both cases, the dye decomposed with time under an exponential law.
关键词
退化作用
照片
光谱
二氧化硅
photo-induced degradation, micro-Raman spectroscopy, dye-sensitized TiO2