Abstract The efficiency of GaAs solar cell was significantly reduced resulting from non-uniformity of energy flux-density on receiver surface, and damage of solar cells was made by “hot spots”. In this paper, a light funnel is added between the concentrator and the receiver to improve the uniformity of energy flux-density on receiver surface, which is designed according to the ray tracing method. The simulation result shows that the uniformity of the energy flux-density on the receiver surface is 92.26%, which agrees with the experimental result (94.64%). According to the maximum output efficiency of GaAs solar cell, the layout range of the cell is determined. The simulation results shown that the cell is arranged in the radius of 58 mm, which is similar to the experimental value (60 mm), and the effective area rate of the photoelectric conversion is 69.4%. At normal operation temperature (20 °C), the photoelectric conversion efficiency is 29.64%, and the total efficiency is about 83%.

中文翻译：

---

光漏斗反射式高聚光光伏系统均匀性的理论与实验研究

摘要 接收面能量通量密度不均匀导致GaAs太阳能电池效率显着降低，“热点”造成太阳能电池损坏。本文在聚光器和接收器之间增加了一个光漏斗，以提高接收器表面能流密度的均匀性，这是根据光线追踪方法设计的。仿真结果表明，接收面上能流密度的均匀性为92.26%，与实验结果一致（94.64%）。根据砷化镓太阳能电池的最大输出效率，确定电池的布局范围。仿真结果表明，电池以58 mm的半径排列，与实验值（60 mm）相近，光电转换有效面积率为69.4%。在正常工作温度（20℃）下，光电转换效率为29.64%，总效率约为83%。