TiO2薄膜染料敏化太阳电池的性能  

Properties of Dye-Sensitized Solar Cells Based on TiO2 Thin Films

作　　者：杨修文 王明秋 Yang Xiuwen;Wang Mingqiu(Department of Automotive and Electronic Engineering, Hanjiang Normal University, Shiyan 442000, Chin)

机构地区：[1]汉江师范学院汽车与电子工程系

出　　处：《微纳电子技术》2018年第1期13-17,共5页Micronanoelectronic Technology

基　　金：湖北省教育研究资助项目(2003298);汉江师范学院科研项目(2016B23)

摘　　要：采用旋涂法、提拉法、水热法、涂覆法制备了TiO2薄膜,利用紫葡萄皮染料分子敏化了TiO2薄膜电极,制备出太阳电池。测试结果表明涂覆法制备的太阳电池的效率最好,初始短路电流密度、开路电压分别为2.840 m A/cm2和0.594 m V,而稳定性最差。相同条件下,其电池短路电流密度、开路电压与初始短路电流密度、开路电压的偏差百分比分别为13.3%和10%。旋涂法、提拉法、水热法制备的电池初始短路电流密度分别为0.619,1.071和0.901 m A/cm2,初始开路电压分别为0.447,0.481和0.488 m V,稳定性基本一样,短路电流密度与初始短路电流密度的偏差百分比分别为9.3%,9.8%和9.3%,开路电压与初始开路电压的偏差百分比分别为8.2%,7.3%和6.9%。电池的不稳定性在初期很强,衰退很快,后期趋于缓和。The TiO2 thin films were prepared by the spin coating method,Czochralski method,hydrothermal method and coating method. The TiO2 thin film electrodes were sensitized by dye molecules of the purple grape skin,and then the solar cells were prepared. The test results show that the efficiency of the solar cell prepared by the coating method is the best. The initial short-circuit current density and open circuit voltage are 2. 840 m A/cm2 and 0. 594 m V respectively,and the stability is the worst. Under the same conditions,the deviation percentages of the short circuit current density and open circuit voltage of the cell from those under the initial condition are 13. 3% and 10%,respectively. For the cells prepared by the spin coating method,Czochralski method and hydrothermal method,the initial short-circuit current densities are 0. 619,1. 071 and 0. 901 m A/cm2 respectively,the initial open circuit voltages are 0. 447,0. 481 and 0. 488 m V respectively,and the stabilities are basically the same. Moreover,the deviation percentages of the initial short-circuit current density from those under the initial condition are 9. 3%,9. 8% and 9. 3% respectively,and the deviation percentages of the initial open circuit voltage from those under the initial condition are 8. 2%,7. 3% and 6. 9% respectively. The instabilities of the cells are very strong at the early stage,decline very fast,and tend to relax at the later stage.

关 键 词：TIO2薄膜 天然染料 太阳电池 紫葡萄皮 稳定性 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TN304.21[电子电信—物理电子学]