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18 December 2023 Simulation study on thermal damage of triple-junction GaAs solar cell under laser irradiation
Minbo He, Zhihua Wu, Yuchuan Yang, Huailong Fu, Weiyan Ren, Siqi Liu
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Proceedings Volume 12959, AOPC 2023: Laser Technology and Applications; and Optoelectronic Devices and Integration; 1295907 (2023) https://doi.org/10.1117/12.3000074
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China
Abstract
Triple-junction GaAs solar cell having high photovoltaic conversion efficiency and high irradiation resistance, can be used as a basic unit of photovoltaic module in laser power supply system. Due to excessive laser energy, solar cell will suffer irreversible damage. For meeting needs of laser power supply and anti-laser protection of solar cell, a thermal effect calculation model of triple-junction GaAs solar cell under laser irradiation is researched and established, which is based on solar cell’ simplified structural model. Simulation analysis of solar cell’s thermal damage is carried out, considering some factors, such as laser power density, reflectivity and initial temperature. Simulation results show that power density that solar cell can bear is less than 1.8 W/cm2 under the long-time irradiation of 1070nm continuous laser. The anti-laser damage capacity of solar cell can be significantly improved by use of laser protection cover-glass, which can improve solar cell’s reflectance from 0.08 to 0.6. After that, power density that solar cell can bear is less than 4 W/cm2 under the long-time irradiation, or even 7 W/cm2 under 30 seconds irradiation. The effect of initial temperature can be equivalent to irradiation time difference. But it can be ignored under long-time irradiation of laser.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Minbo He, Zhihua Wu, Yuchuan Yang, Huailong Fu, Weiyan Ren, and Siqi Liu "Simulation study on thermal damage of triple-junction GaAs solar cell under laser irradiation", Proc. SPIE 12959, AOPC 2023: Laser Technology and Applications; and Optoelectronic Devices and Integration, 1295907 (18 December 2023); https://doi.org/10.1117/12.3000074
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KEYWORDS
Solar cells
Laser irradiation
Batteries
Gallium arsenide
Thermal effects
Thermal modeling
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