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Design and optimization of GaAs photovoltaic converter for laser power beaming

机译：激光束辐照GaAs光伏转换器的设计与优化

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GaAs photovoltaic (PV) converters are useful for the conversion of monochromatic light into electrical power in numerous military and industrial applications. The work of this paper is to design a monochromatic GaAs PV converter for coupling to laser beams in the wavelength of 790-840 nm and optimize its structure, layer thicknesses, doping levels of the emitter and base, and antireflection coating. Modeling calculations of the GaAs PV converter optimization are carried out using PC-1D. From the highest efficiency point of view, the best wavelength is 840 nm at which the optimized structure gives an efficiency of 61.8% theoretically. Experiment results under 808 nm laser power beaming show that high optical-to-electrical conversion efficiency of 53.23% at 5 W/cm(2) is achieved using the optimized GaAs PV laser converter. Finally, accurate extraction of the key parameters, viz, the ideality factor, reverse saturation current, series resistance and shunt resistance is introduced. Variations of these parameters with illumination intensity are also investigated analytically based on the one diode model, which are necessary for the design of a high performance PV generation system. (C) 2015 Elsevier B.V. All rights reserved.
机译：GaAs光电（PV）转换器在许多军事和工业应用中可用于将单色光转换为电能。本文的工作是设计一种单色GaAs PV转换器，用于耦合至790-840 nm波长的激光束，并优化其结构，层厚度，发射极和基极的掺杂水平以及抗反射涂层。 GaAs光伏转换器优化的模型计算是使用PC-1D进行的。从最高效率的角度来看，最佳波长是840 nm，优化结构在理论上给出的效率为61.8％。在808 nm激光功率光束下的实验结果表明，使用优化的GaAs PV激光转换器，在5 W / cm（2）时具有53.23％的高光电转换效率。最后，介绍了关键参数的精确提取，即理想因子，反向饱和电流，串联电阻和并联电阻。还基于一个二极管模型对这些参数随照明强度的变化进行了分析研究，这对于设计高性能PV发电系统是必需的。 （C）2015 Elsevier B.V.保留所有权利。

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