Experimental study on the irradiation effect of fiber CW laser on three junction GaAs solar array

Lei Cai; Weiyan Ren; Yuchuan Yang; Lingyuan Wu; Jingquan Zhang; Zhihua Wu; Huailong Fu; Minbo He; Yafei Ding; Siqi Liu

doi:10.1117/12.3005231

18 December 2023 Experimental study on the irradiation effect of fiber CW laser on three junction GaAs solar array

Lei Cai, Weiyan Ren, Yuchuan Yang, Lingyuan Wu, Jingquan Zhang, Zhihua Wu, Huailong Fu, Minbo He, Yafei Ding, Siqi Liu

Proceedings Volume 12959, AOPC 2023: Laser Technology and Applications; and Optoelectronic Devices and Integration; 129590I (2023) https://doi.org/10.1117/12.3005231
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

The laser irradiation effect of three-junction GaAs solar cell arrays was studied through the experiment of fiber laser irradiation under different irradiation time and power density. The photocurrent voltage characteristics of solar array before and after laser irradiation were tested, The dark current voltage characteristics and spectral response of each solar cell array after irradiation were tested. The test and analysis results reveal that, The radiation damage of continuous laser to the array, due to the uneven energy distribution of the laser spot, the damage degree at different positions of the array is different. The damage of a single battery varies greatly, ranging from slight damage to complete failure. In the area with medium or strong laser power, continuous laser first damages the first and second junctions corresponding to the top cell and the middle cell, while the third junction corresponding to the bottom cell has less influence; In the area with weak laser power, the damage to the battery interior caused by continuous laser starts from the bottom battery with the smallest band gap, followed by the top battery and the middle battery.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Lei Cai, Weiyan Ren, Yuchuan Yang, Lingyuan Wu, Jingquan Zhang, Zhihua Wu, Huailong Fu, Minbo He, Yafei Ding, and Siqi Liu "Experimental study on the irradiation effect of fiber CW laser on three junction GaAs solar array", Proc. SPIE 12959, AOPC 2023: Laser Technology and Applications; and Optoelectronic Devices and Integration, 129590I (18 December 2023); https://doi.org/10.1117/12.3005231

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KEYWORDS

Batteries

Laser irradiation

Spectral response

Solar cells

Quantum efficiency

Resistance

Gallium arsenide

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