激光辐照下光电电池的极限能量转化效率研究

发布时间：2018-03-20 20:36

本文选题：激光输能　切入点：光电电池　出处：《激光与红外》2016年04期 　论文类型：期刊论文

【摘要】：采用激光输能技术解决临近空间飞行器的能源供给问题的研究正在广泛开展。为研究激光辐照下的光电电池的极限性能,基于细致平衡理论,分析了激光辐照条件下光电材料禁带宽度与最佳激光波长的关系,得到了光电电池各类输出性能参数的计算方法。通过计算,得到了激光波长、激光功率密度和电池温度对能量转化效率等参数的影响规律。结果表明对于特定材料的光电电池存在最佳的激光波长使其获得极限能量转化效率;激光功率密度的增加可以提高光电电池的能量转化效率,但达到一定数值后提高不再明显;对于电池温度的影响,不同的输出性能参数具有不同的温度系数。
[Abstract]:In order to study the limit performance of photovoltaic cells irradiated by laser, the research on energy supply of near space vehicle using laser energy transmission technology is being carried out extensively. Based on the theory of meticulous balance, The relationship between the band gap width of optoelectronic materials and the optimum laser wavelength under laser irradiation is analyzed, and the calculation method of various output performance parameters of photovoltaic cells is obtained. By calculation, the laser wavelength is obtained. The effect of laser power density and cell temperature on energy conversion efficiency is studied. The increase of laser power density can improve the energy conversion efficiency of the photovoltaic cell, but the increase is no longer obvious after reaching a certain value; for the effect of the cell temperature, different output performance parameters have different temperature coefficient.
【作者单位】：装备学院激光推进及其应用国家重点实验室;
【分类号】：V242;TM914

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