Preparation of porous nanoparticle TiO_2 films for flexible dye-sensitized solar cells

查看全文 作　　者：WANG Yue WU JiHuai LAN Zhang XIAO YaoMing LI QingBei PENG FuGuo LIN JianMing HUANG [1]MiaoLiang

机构地区：[1]Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Institute of Materials Physical Chemistry,Huaqiao University, Quanzhou 362021, China

出　　处：《Chinese Science Bulletin》索引2011年第56卷第24期,共5页

基　　金：supported by the National High Technology Research and Development Program of China (2009AA03Z217);the National Natu-ral Science Foundation of China (50842027, 90922028) 摘　　要：A TiO2 paste was prepared by mixing commercial TiO2 (P25), ethanol, distilled water and a small amount of Ti (IV) tetrai-sopropoxide (TTIP), following by a hydrothermal treatment. Before hydrothermal treatment, a stirring for 48 h can prevent cracking TiO2 films. TTIP significantly promote the chemical connection between TiO2 particles and its adherence to the substrate, the TTIP amount of 6 mol% is suitable. UV irradiation can remove some impurities and water from the TiO2 film with an optimal time of 2 h. Transmission electron microscopy, X-ray diffraction, scanning electron microscopy and photovoltaic tests are charac- terized and measured. Shortcircuit current density, open-circuit voltage, fill factor and photoelectric conversion efficiencies for the fabricated flexible dye-sensitized solar cell are 7.20 mA cm-2, 0.769 V, 0.686 and 3.84%, respectively, under irradiation with a simulated solar light of 100 mW cm-2. 关键词：染料敏化太阳能电池纳米二氧化钛制造柔性薄膜制备透射电子显微镜 X射线衍射分析扫描电子显微镜紫外线照射

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Preparation of porous nanoparticle TiO_2 films for flexible dye-sensitized solar cells

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