Cu_2ZnSnS_4/Zn(O,S)异质结薄膜太阳电池的数值仿真  

Numerical simulation Cu_2ZnSnS_4/Zn(O,S) heterojunction thin film solar cells

作　　者：张红[1] 程树英[1] 周海芳[1] 俞金玲[1] 贾宏杰[1] 吴丽君[1] ZHANG Hong CHENG Shuying ZH YU Jinling JIA Hongjie WU Lijun(Institute of Micro-Nano Devices and Solar Cells,College of Physics and Information Engineering,Fuzhou University,Fuzhou,Fujian 350116,China)

机构地区：[1]福州大学物理与信息工程学院微纳器件与太阳能电池研究所,福建福州350116

出　　处：《福州大学学报（自然科学版）》2017年第3期342-347,共6页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61574038);福建省科技厅科研资助项目(2015H0021);福建省教育厅科研资助项目(JA15092);福州大学贵重仪器设备开放测试基金资助项目(2016T042)

摘　　要：采用SCAPS软件,对CZTS/Zn(O,S)/Al:ZnO结构的薄膜太阳电池进行数值仿真,主要模拟研究Zn(O,S)的禁带宽度和电子亲和势、缓冲层的厚度及掺杂浓度、环境温度对电池性能的影响.结果表明:当Zn(O,S)的厚度和载流子浓度分别为50 nm和10^(17)cm^(-3)时,电池的转换效率可达14.90%,温度系数为-0.021%K^(-1).仿真结果为Zn(O,S)缓冲层用于CZTS太阳电池提供了一定的指导.In this paper CZTS solar cell with a structure of CZTS/Zn（ 0,S）/Al：Zn0 was simulated by solar cell capacitance simulator （SCAPS）. The impacts of band gap,electron affinity, thickness, donor concentration of Zn （O, S ） and operating temperature on the performance of CZTS solar cells were investigated. It has been obtained that the optimum thickness of Zn（O, S） is about 50 nm. The suitable doping concentration of Zn（O, S） is around 10^17cm^-3. The temperature coefficient of efficien-cy is about -0.021% K^-1 in the CZTS solar cell. All these simulation results will provide some impor-tant guidelines for fabricating high efficient CZTS solar cells.

关 键 词：CZTS薄膜太阳电池 Zn(O S)缓冲层 SCAPS 

分 类 号：O469[理学—凝聚态物理]