纳晶TiO2多孔薄膜电极的制备及其性能研究  

Preparation and properties of nano-crystalline TiO_2 porous film electrode

作　　者：李胜军[1] 林原[2] 杨世伟[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：《功能材料》2008年第1期95-97,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50221201);国家重点基础研究发展规划(973计划)资助项目(2006CB202605)

摘　　要：用溶胶-凝胶法制备的TiO2胶体与乙基纤维素粘稠剂制备胶体溶液,通过丝网印刷技术制备纳晶TiO2多孔薄膜电极,对乙基纤维素的含量、TiO2的固含量和水热时间等制备工艺参数进行了研究。利用优化工艺条件后的纳晶TiO2多孔薄膜电极组装成染料敏化太阳能电池-TiO2/0.5molL LiI+0.05mol/L I2+0.5mol/L 4-叔丁基吡啶的三甲氧基丙腈溶液/Pt,在100mW/cm2光照条件下,光电转换效率可达到6.25%。Titanium dioxide collid was made by means of sol-gel method. Ethyl cellulosic thichener was added directly in the collid to get TiO2 collid solution. Screen printing technique was used to make nano-crystalline TiO2 porous film electrode. The preparation conditions, such as the content of thichener, the content of TiO2 in the sol solution and the hydrothermal reaction time, were studied. The properties of the porous film electrode were studied in the dye-sensitized solar cells-TiO2/0.5moll LiI＋0.05mol/L I2 ＋0.5mol/L 4-tert.-butylpyridine and 3-Methoxypropionitrile solution. The photoelectric conversion efficiency with the optimized film electrode could be 6.25% irradiated by a solar simulator with 100mW/cm^2.

关 键 词：纳晶TiO2多孔薄膜电极 丝网印刷技术 溶胶-凝胶法 染料敏化太阳能电池 

分 类 号：TM914.42[电气工程—电力电子与电力传动]