摘要
苯基磷酸联吡啶钌络合物敏化纳晶多孔TiO2薄膜电极光电性能研究*杨蓉王维波敬炳文肖绪瑞**张曼华沈涛(中国科学院感光化学研究所,北京100101)关键词联吡啶钌,TiO2薄膜,染料敏化用有机光敏染料敏化半导体,通过染料分子的吸附功能基团与半导体相互作...
hiocyanato (4,4-dimethy1-2,2-bipyridyl)(4-phenylphosphonateterpyridyl) ruthenium(Ⅱ) was prepared and characterized with respect to its absorption, luminecence, and emission lifetime. The new dye with phosphonate absorption group can act as efficient chargetransfer sensitizer for nanocrystalline TiO_2 film illustrated by the high quantum yield of charge injection from the excited dye to the conduction band of TiO_2. Nanocrystalline TiO_2 film coated with monolayer of the prepared dye harvests visible light efficiently with the maximum LHE of 89.5% at 503 nm, And thus fabricated sensitized TiO_2 solar cell have a lighttoelectric energy conversion efficiency of 3.1%, with 0.66V opencircuit photovoltage and 4.4 mA/cm2 shortcircuit photocurrent. Study on the photocurrent action spectrum of the new dye sensitized TiO_2 film shows that the absorption group of the sensitizer has a strong influence on the photoelectrical performance of the film electrode.
出处
《感光科学与光化学》
CSCD
1997年第4期293-296,共4页
Photographic Science and Photochemistry
基金
国家自然科学基金
中国科学院感光化学所光化学开放实验室资助