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

作　　者：WANG Yue WU JiHuai LAN Zhang XIAO YaoMing LI QingBei PENG FuGuo LIN JianMing HUANG 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》2011年第24期2649-2653,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.A TiO2 paste was prepared by mixing commercial TiO2 （P25）, ethanol, distilled water and a small amount of Ti （IV） tetraisopropoxide （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 characterized and measured. Short-circuit 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 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TQ134.11[化学工程—无机化工]