为了研究激光对光伏电池辐照效应的波段性, 搭建了激光辐照下光伏电池输出特性测量平台, 采用位于波段内外的2种波长激光对3种光伏电池的辐照效应进行了实验分析。首先, 测量了光伏电池短路电流、开路电压、峰值功率、填充因子及转换效率等随激光功率和波长的变化关系。然后, 分析了激光功率和波长对光伏电池输出特性的影响规律。最后, 提出了光伏电池转换效率的优化方法。结果表明: 铟镓砷电池的转换效率高于传统的硅电池和砷化镓电池, 当激光功率为0.405 W时, 转换效率达到最大约为54.5 %, 满足空地、空空、地面等多种激光无线能量传输应用场合的重大需求。

In order to research the wave band of laser irradiation effect on the photovoltaic cell, the measurement platform for the output characteristics of the photovoltaic cell was established, and the irradiation effect on three kinds of photovoltaic cells by in-band and off-band lasers were studied. Firstly, the changing trend of short-circuit current, open-circuit voltage, peak power, fill factor and conversion efficiency with the laser power and wavelength were studied. Then, the influence rules of laser power and wavelength on the output characteristics of the photovoltaic cell were analyzed. Finally, the optimization methods of conversion efficiency of the photovoltaic cell were proposed. The experimental results indicate that the conversion efficiency of InGaAs cell is higher than that of traditional Si cell and GaAs cell, and could reach a maximum of 54.5% at the laser power of 0.405 W. It could satisfy the requirements of a variety of laser wireless power transmission applications, such as in air-ground, air-air and ground-ground situations.