Abstract
Problems arising in fabrication of lightweight flexible solar cells based on heteroepitaxial AIIIBV structures with substrate etching are discussed. Possible solutions are proposed. A tandem lightweight flexible solar cell based on a heteroepitaxial InGaP/GaAs structure was fabricated. Its mass and dimensional characteristics were determined, and bending tests were performed. The specific mass of this solar cell was 0.51 kg/m2, and the allowable bend radius was 36 mm. Its current–voltage curves were measured for the AM0 and AM1.5D spectra at 28.6°C and 25°C, respectively. The cell efficiency was found to be 23.1% and 28.3%.
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This study was supported by SP-749.2016.1.
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Putyato, M.A., Valisheva, N.A., Petrushkov, M.O. et al. A Lightweight Flexible Solar Cell Based on a Heteroepitaxial InGaP/GaAs Structure. Tech. Phys. 64, 1010–1016 (2019). https://doi.org/10.1134/S106378421907020X
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DOI: https://doi.org/10.1134/S106378421907020X