CdSe敏化TiO_2纳米晶多孔膜电极的制备及其光电性能研究  

Preparation and photoelectrochemical performance of CdSe dots sensitized nanocrystalline TiO_2 film electrode

作　　者：张含平[1] 林原[2] 周晓文[2] 王正平 张宝宏[1] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001 [2]中国科学院化学研究所分子科学中心光化学重点实验室,北京100080

出　　处：《现代化工》2006年第11期39-41,共3页Modern Chemical Industry

基　　金：国家"863计划"资助项目(2002AA302403);国家自然科学基金创新群体(50221201;50473055)资助项目

摘　　要：研究了CdSe敏化TiO2纳米晶多孔薄膜电极的制备及其表征,采用涂敷法将溶胶-凝胶法制备的TiO2胶体制备成纳米晶多孔薄膜,采用化学沉积法制备的CdSe对其进行了敏化处理。敏化后增加了对可见光的吸收作用和光生载流子的输运速度,减少了CdSe上光生载流子的复合,改善了电极内光生电荷的传递特性,获得了较大的稳态光电流。这种薄膜电极改进后可用于制作敏化太阳能电池的光阳极。The preparation and characterization of CdSe dots sensitized nanocrystalline TiO2 film electrode were studied. The porous TiO2 film was prepared by Doctor-blade method with TiO2 paste synthesized by sol-gel method. The TiO2/CdSe composite films were characterized with SEM and UV-Vis spectra. The composite films absorbed more visible light and had photoelectron transfer rate, it reduced charge recombination losses which lead to a substantial improvement on the photocurrent, The composite films can be used photoelectrode after some improvement of the films.

关 键 词：TIO2 CDSE 敏化 溶胶-凝胶法 化学沉积法 

分 类 号：TM914[电气工程—电力电子与电力传动]