Preparation of nanocrystalline TiO2 thin film at low temperature and its application in dye-sensitized solar cell
Preparation of nanocrystalline TiO2 thin film at low temperature and its application in dye-sensitized solar cell
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DOI：
10.1007/s10008-008-0605-4
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发表时间：
2009-05
影响因子：
2.5
通讯作者：
W. Tan;Jinmao Chen;Xiaowen Zhou;Jingbo Zhang;Yuan Lin;Xue-ping Li;Xurui Xiao
中科院分区：
文献类型：
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作者：
W. Tan;Jinmao Chen;Xiaowen Zhou;Jingbo Zhang;Yuan Lin;Xue-ping Li;Xurui Xiao
采用电泳沉积结合常压水热处理的方法，以钛酸四丁酯和P25为原料，在低温下制备了纳米TiO2薄膜。采用常压水热法将钛酸四丁酯水解结晶成纳米TiO2颗粒，并将其粘附在导电基底上，以提高薄膜的电子传输性能。低温法制备的TiO2薄膜染料敏化太阳能电池的转换效率为6.12%。由于沉积膜中电子传输速率相对较慢，其转换效率略低于传统高温烧结法制备的TiO2薄膜电池。由于该方法不需要高温烧结步骤，因此可用于在塑料聚合物导电基底上制备纳米TiO2薄膜，用于柔性染料敏化太阳能电池的制备。
The electrophoretic deposition combined with common pressure hydrothermal treatment was employed to prepare nanocrystalline TiO2thin film from suspension of tetra-n-butyl titanate and P25 at low temperature. The tetra-n-butyl titanate was hydrolyzed and crystallized into anatase to interconnect nanocrystalline TiO2particles and to stick them to a conductive substrate by common pressure hydrothermal treatment to improve the electron transport properties of the deposited thin film. A dye-sensitized solar cell based on TiO2thin film prepared by the low temperature method yielded the conversion efficiency of 6.12%. Due to the relative slower electron transport rate in the deposited film, its conversion efficiency was slightly lower than that of the cell with TiO2thin film prepared by the conventional high temperature sintering method. Since it is free of high temperature sintering step, this method can be used to prepare nanocrystalline TiO2thin film on plastic polymer conductive substrate for fabrication of flexible dye-sensitized solar cell.