单色光电流-电压特性测试在碲化镉太阳电池研究中应用  

Application of Monochromatic Current-voltage Characteristic in Cd Te Solar Cells Research

作　　者：王文武[1] 蒋亚男 张静全[1] WANG Wenwu;JIANG Yanan;ZHANG Jingquan(College of Materials Science and Engineering, Sichuan University,Chengdu 610064, China)

机构地区：[1]四川大学材料科学与工程学院,成都610064

出　　处：《实验室研究与探索》2019年第4期10-12,28,共4页Research and Exploration In Laboratory

基　　金：国家高技术研究发展(863)计划(2015AA050610);2017年四川大学实验技术立项项目(20170069)

摘　　要：针对不同结构的碲化镉(CdTe)太阳电池,测试其单色光特性,并计算出不同波长下的收集效率。结果表明,高质量的高阻层能提高太阳电池短波区的收集效率,对提高长波段的收集效率有一定作用;背接触层能够明显在电池背部形成欧姆接触;适当的硫化镉(CdS)层的厚度能够改善窗口层的界面,提升电池的器件性能。通过该测试方法可以获得器件结构与器件性能之间关系,从而为进一步优化电池结构和制备工艺、提高太阳电池转换效率提供依据。The monochromatic optical current-voltage characteristic performances of cadmium telluride solar cells with different structures were tested,and the collection efficiency at different wavelengths was calculated. The results show that high resistivity layer can greatly improve the collection efficiency of solar cell short-wave,and has a certain effect on the collection efficiency of long-wave. The back contact layer facilitates forming ohmic contact on the back of the solar cells. And the appropriate cadmium sulfide layer can improve the interface of window layer and improve the device performance of solar cells. The relationship between device structure and device performance is obtained by the measure method in order to provide theoretical and experimental basis for further optimization of battery structure and preparation technology and improvement of solar cell conversion efficiency.

关 键 词：太阳电池 单色光电流-电压特性 收集效率 碲化镉 

分 类 号：O433.1[机械工程—光学工程] O472[理学—光学]