溶胶-凝胶法制备的染料敏化太阳电池的性能  

Performance of the Dye-Sensitized Solar Cells Prepared by the Sol-Gel Method

作　　者：杨修文[1] 张炳[1] 谭赟赟[2] 

机构地区：[1]郧阳师范高等专科学校物理系,湖北十堰442000 [2]郧阳师范高等专科学校教育系,湖北十堰442000

出　　处：《微纳电子技术》2013年第9期603-607,共5页Micronanoelectronic Technology

基　　金：湖北省教育研究资助项目(2003298)

摘　　要：通过溶胶-凝胶法在ITO和玻璃表面制备了TiO2薄膜,从果实黑米中提取了天然色素作为敏化剂,将KI和I2与有机溶剂作为太阳电池的电解质,组装了染料敏化太阳电池(DSC)。研究了薄膜厚度、烧结时间和染料浸渍时间对染料敏化TiO2薄膜太阳电池性能的影响,实验结果显示,当TiO2薄膜厚度为15μm,在高温500℃条件下保温30 min,在染料中浸渍24 h,组装的电池最佳。实验所获得的电池开路电压达到960 mV,短路电流为0.097 mA,填充因子为0.61。同时,测试了放置时间对太阳电池的影响,旋涂溶胶-凝胶法制备的电池优于涂敷法制备的电池。TiO2 thin films were prepared on ITO substrates by the sol-gel method. The natural dye was abstracted from the fruit black rice, and was served as the sensitizing dye. The electro- lyte was prepared by dissolving KI and I2 in the organic solvent, and the dye-sensitized solar cell （DSC） was assembled. The impact of the film thickness, sintering time and dye soaking time on the performance of the dye-sensitized TiO2 thin film solar cells was researched. The experiment result shows that the solar cells have the best performance, when the thickness of the film is 15 t^m, the sinter temperature is 500 ~C, the time of the constant temperature is 30 rain, and the cell is soaked in the dye for 24 h. Besides that, the highest open circuit voltage obtained in the experi- ment is 960 mV, the short circuit current is 0. 097 mA, and the fill factor is 0.61. Meanwhile, the effect of the storage time on the solar cell was tested, the performance of the solar cell pre- pared by the sol-gel method was better than that of the solar cell prepared by the spin coating method.

关 键 词：TIO2薄膜 染料敏化 太阳电池 薄膜厚度 烧结时间 染料浸渍时间 

分 类 号：TM914.4[电气工程—电力电子与电力传动]