四氯化钛处理对染料敏化太阳能电池性能的影响及光电致变色器件的构建  

Effect of TiCl_4 Aqueous Solution on the Photovoltaic Performance of Dye Sensitized Solar Cells and Application in Photoelectrochromic Device

作　　者：李文琴[1] 杜蕾[1] 谷田祯 王轲[1] 王金敏[1] 

机构地区：[1]上海第二工业大学环境与材料工程学院,上海201209

出　　处：《上海第二工业大学学报》2016年第1期10-14,共5页Journal of Shanghai Polytechnic University

基　　金：上海高校特聘教授(东方学者)岗位计划(No.2013-70);上海市青年科技英才扬帆计划(No.14YF1410500);国家自然科学基金(No.61376009);上海高校青年教师培养资助计划(No.ZZegd14011);上海第二工业大学校级科研项目(No.EGD13XQD08)资助

摘　　要：通过将不同浓度的四氯化钛溶液水解,在二氧化钛多孔膜上形成致密的阻挡层薄膜,抑制光生电子与电解液中I_3^-的复合,提高了染料敏化太阳能电池的光电转换效率;将优化后的太阳能电池经外电路与基于普鲁士蓝的电致变色器件连接,构建光电致变色器件。结果表明,经0.1 mol/L四氯化钛溶液处理的二氧化钛光阳极的太阳能电池的光电转换效率为4.42%。将该条件下的太阳能电池构建于光电致变色器件中,太阳能电池产生的电压可驱动电致变色器件变色,变色前后器件在700 nm波长处的透过率调制幅度可达52.77%。A dense blocking dye layer was formed on the top of titanium dioxide electrode through hydrolysis process of TiCl4 aqueous solution, aiming to retard the recombination between photo-electron and I-3. An optimized photovoltaic performance was obtained with pretreatment of 0.1 mol/L TiCl4, with an overall conversion efficiency of 4.42%. The results revealed that the retarding layer was beneficial to increment of electrical conductivity of TiO2 film and dye adsorption amount. Photoelectrochromic device was constructed by combination of DSSCs and Prussian blue electrochromic device through external circuit. A transmittance modulation of 52.77% was achieved at the wavelength of 700 nm.

关 键 词：四氯化钛 普鲁士蓝 染料敏化太阳能电池 电致变色器件 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB383.2[一般工业技术—材料科学与工程]