连续激光供能单结GaAs光电池输出特性仿真
发布时间：2018-10-30 17:45
【摘要】：为了研究808 nm连续激光供能对单结GaAs光电池输出性能的影响,利用COMSOL和MATLAB软件构建了相应物理模型,通过数值仿真研究了激光功率密度、等效串并联电阻和减反膜对热稳态时光电池伏安特性、开路电压、短路电流、光电转换效率、填充因子和稳态工作温度的影响。结果表明:随着激光功率密度增大,开路电压和短路电流不断增大,且转换效率和填充因子都具有最大值;减小等效串联电阻和增大等效并联电阻是提高光电池输出性能的有效方法;减反膜结构对提高光电池转换效率非常重要,但也使光电池热稳态工作温度较高。当入射功率密度为62.4 mW/cm~2时,光电池热稳态输出效率达到最高为50.13%。该数值模拟结果与相关实验结果基本相符,对连续激光供能光电池输出特性研究提供一定的理论依据。
[Abstract]:In order to study the effect of 808 nm continuous laser power supply on the output performance of single-junction GaAs photovoltaic cells, the corresponding physical models were constructed by using COMSOL and MATLAB software, and the laser power density was studied by numerical simulation. The effects of equivalent series-parallel resistance and antireflection film on the volt-ampere characteristics, open-circuit voltage, short-circuit current, optoelectronic conversion efficiency, filling factor and steady-state operating temperature of the thermostable time cell are investigated. The results show that the open circuit voltage and short circuit current increase with the increase of laser power density, and the conversion efficiency and filling factor have the maximum value. Reducing the equivalent series resistance and increasing the equivalent parallel resistance are the effective methods to improve the output performance of the photovoltaic cell, and the reverse film structure is very important to improve the conversion efficiency of the photocell, but it also makes the photocell thermostable operation temperature higher. When the incident power density is 62.4 mW/cm~ _ 2, the thermal output efficiency of the photocell reaches the maximum of 50.13. The numerical simulation results are in good agreement with the experimental results, which provides a theoretical basis for the study of the output characteristics of CW laser photovoltaic cells.
【作者单位】： 南京理工大学理学院;上海空间电源研究所;
【基金】：上海航天科技创新基金(SAST20161113)
【分类号】：TM914
本文编号：2300719
[Abstract]:In order to study the effect of 808 nm continuous laser power supply on the output performance of single-junction GaAs photovoltaic cells, the corresponding physical models were constructed by using COMSOL and MATLAB software, and the laser power density was studied by numerical simulation. The effects of equivalent series-parallel resistance and antireflection film on the volt-ampere characteristics, open-circuit voltage, short-circuit current, optoelectronic conversion efficiency, filling factor and steady-state operating temperature of the thermostable time cell are investigated. The results show that the open circuit voltage and short circuit current increase with the increase of laser power density, and the conversion efficiency and filling factor have the maximum value. Reducing the equivalent series resistance and increasing the equivalent parallel resistance are the effective methods to improve the output performance of the photovoltaic cell, and the reverse film structure is very important to improve the conversion efficiency of the photocell, but it also makes the photocell thermostable operation temperature higher. When the incident power density is 62.4 mW/cm~ _ 2, the thermal output efficiency of the photocell reaches the maximum of 50.13. The numerical simulation results are in good agreement with the experimental results, which provides a theoretical basis for the study of the output characteristics of CW laser photovoltaic cells.
【作者单位】： 南京理工大学理学院;上海空间电源研究所;
【基金】：上海航天科技创新基金(SAST20161113)
【分类号】：TM914
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，本文编号：2300719
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