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空间太阳电池作为航天器主要能量来源会受到来自空间高能粒子辐照作用，因此，航天器太阳电池阵设计时必须考虑空间电子辐照引起的性能损失，将辐照衰降以辐照损失因子形式体现在太阳电池阵重要参数设计中，使末期输出功率满足航天器需求，避免太阳电池阵性能衰减影响整星功率输出。对光电转换效率为34%的空间高效三结砷化镓太阳电池的电子辐照损失因子进行了测算，分析了特定剂量电子辐照试验后电性能随时间变化情况。通过累计通量为1×1013 e/cm2的电子能量1 MeV电子辐照试验及光退火试验，得到34%空间高效三结砷化镓太阳电池最佳工作点电压和电流的辐照损失因子分别为2.7%和1.8%,光退火处理使最佳工作点电压和电流分别恢复了1.65%和0.22%。这对其空间推广应用、提升卫星太阳翼质量比功率、降低发射成本具有重要意义。
Abstract：Space solar cells are important energy source for spacecraft, yet they are exposed to irradiation from high-energy particles in space. Therefore, when the solar cell array of a spacecraft is designed, the performance loss caused by space electron irradiation must be taken into account. The irradiation degradation should be taken into account in the form of an irradiation loss factor in the design of important parameters of the solar cell array to ensure that the final output power meets the requirements of the spacecraft and avoid the impact of the performance degradation of the solar cell array on the power output of the overall spacecraft. The electron irradiation loss factor of high-efficiency triple-junction GaAs space solar cells with the photoelectric conversion efficiency of 34% was calculated, and the electrical performance along with time after specific doses of electron irradiation testing was analyzed. Through the electron irradiation test with a cumulative flux of 1×1013 e/cm2 and an electron energy of 1 MeV followed by photo-annealing test, the ultimate irradiation loss factors of the optimal operating point voltage and current of 34% high-efficiency triple-junction GaAs space solar cells are 2.7% and 1.8%, respectively. The optimal operating point voltage and current are respectively recovered by 1.65% and 0.22% by the photo-annealing treatment. The irradiation loss factor for 34% high-efficiency triple-junction GaAs space solar cells was calculated. This work is of great significance in promoting the space application, enhancing the mass specific power of satellites' solar wings and reducing launch costs.
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基本信息:
DOI：10.13250/j.cnki.wndz.26020201
中图分类号:V442;TM914.4
引用信息:
[1]李彬,殷茂淑,曹万水,等.空间高效三结砷化镓太阳电池电子辐照研究[J].微纳电子技术,2026,63(02):73-80.DOI:10.13250/j.cnki.wndz.26020201.
基金信息:
上海市自然科学基金(23ZR1430100); 河南省自然科学基金(252300420986); 青年科学基金项目(C类)(62501392)
2026-01-02
2026-01-02
2026-01-02