摘要
利用理论计算确定适用于空间四结砷化镓太阳电池的布拉格反射器(DBR),同时借助Macleod软件对引入四结太阳电池的DBR结构进行模拟,并对比分析引入DBR结构的四结太阳电池在1MeV高能电子辐照前后的电学性能.结果表明,模拟得到由15对Al0.1Ga0.9As/Al0.9Ga0.1As材料组成的DBR在中心波长960nm处反射率最高且达到98.4%,高反射带宽165nm,与实验制备的引入该DBR结构的电池最高反射中心波长基本吻合.通过分析辐照前后电学性能,发现引入该DBR结构的电池辐照后各项电学性能衰减幅度小于未引入DBR结构的电池.
The Bragg reflector(DBR) suitable for space four-junction GaAs solar cells was determined by theoretical calculations,and the DBR embedded in the four-junction solar cells was simulated by Macleod software. Four-junction solar cell with DBR was subjected to 1 MeV high-energy electron irradiation experiment,in order to obtain the electrical parameters before and after irradiation to analyze.The results show that,the DBR composed of 15 pairs of Al 0.1 Ga 0.9 As/Al 0.9 Ga 0.1 As materials has the highest reflectivity at the center wavelength of 960 nm and reaches 98.4%,which is fit well with the solar cell embedded this DBR structure in experiment. By analyzing the electrical properties before and after irradiation,it was found that the degradation of the electrical properties after the irradiation in the solar cell with DBR structure was smaller than that one without the DBR structure.
作者
颜平远
涂洁磊
张炜楠
徐晓壮
宋冠宇
孙晓宇
YAN Ping-yuan;TU Jie-lei;ZHANG Wei-nan;XU Xiao-zhuang;SONG Guan-yu;SUN Xiao-yu(Solar Energy Research Institute,Key Laboratory of Advanced Technology and Preparation for Renewable EnergyMaterials of the Ministry of Education,Yunnan Normal University,Kunming 650500,China)
出处
《云南师范大学学报（自然科学版）》
2019年第5期6-10,共5页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
国家自然科学基金资助项目(61664010)
关键词
布拉格反射器
四结太阳电池
抗辐照
电学性能
Bragg reflectors
Four-junction solar cell
Anti-radiation
Electrical properties
