Numerical simulation on high-efficiency GaInP/GaAs/InGaAs triple-junction solar cells

Shu-Hsuan Chang; Miao-Chan Tsai; Sheng-Horng Yen; Shu-Jeng Chang; Yen-Kuang Kuo

doi:10.1117/12.841270

25 February 2010 Numerical simulation on high-efficiency GaInP/GaAs/InGaAs triple-junction solar cells

Shu-Hsuan Chang, Miao-Chan Tsai, Sheng-Horng Yen, Shu-Jeng Chang, Yen-Kuang Kuo

Proceedings Volume 7597, Physics and Simulation of Optoelectronic Devices XVIII; 759721 (2010) https://doi.org/10.1117/12.841270
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

In this paper, the high-efficiency GaInP/GaAs/InGaAs triple-junction solar cells are investigated numerically by using the APSYS simulation program. The solar cell structure used as a reference was based on a published article by Geisz et al. (Appl. Phys. Lett. 91, 023502, 2007). By optimizing the layer thickness of the top and middle cells, the appropriate solar cell structure which possesses high sunlight-to-energy conversion efficiency is recommended. At AM1.5G and one sun, the conversion efficiency is improved by 2.3%. At AM0 and one sun, the conversion efficiency is improved by 4.2%. At AM1.5D and one sun, the conversion efficiency is improved by 1.3%. Furthermore, based on the optimized structures, this device can achieve efficiencies of more than 40% at high concentrations. For the triple-junction solar cell under AM1.5G solar spectrum, the conversion efficiency reaches 40.2% at 40 suns. For the device under AM0 solar spectrum, the conversion efficiency reaches 36.2% at 30 suns. For the device under AM1.5D solar spectrum, the conversion efficiency reaches 40.2% at 50 suns.

Citation Download Citation

Shu-Hsuan Chang, Miao-Chan Tsai, Sheng-Horng Yen, Shu-Jeng Chang, and Yen-Kuang Kuo "Numerical simulation on high-efficiency GaInP/GaAs/InGaAs triple-junction solar cells", Proc. SPIE 7597, Physics and Simulation of Optoelectronic Devices XVIII, 759721 (25 February 2010); https://doi.org/10.1117/12.841270

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KEYWORDS

Solar cells

Sun

Gallium arsenide

Device simulation

Indium gallium phosphide

Numerical simulations

Photons

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