Effective mobility map for InGaP/InGaP multiple quantum-well-based solar cells

Hsiang-Hung Huang; Kasidit Toprasertpong; Amaury Delamarre; Justin Zenas Sun; Kentaroh Watanabe; Masakazu Sugiyama; Yoshiaki Nakano

doi:10.1117/12.2508592

27 February 2019 Effective mobility map for InGaP/InGaP multiple quantum-well-based solar cells

Hsiang-Hung Huang, Kasidit Toprasertpong, Amaury Delamarre, Justin Zenas Sun, Kentaroh Watanabe, Masakazu Sugiyama, Yoshiaki Nakano

Author Affiliations +

Proceedings Volume 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII; 1091310 (2019) https://doi.org/10.1117/12.2508592
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

InGaP top cell often limits the efficiency of multi-junction solar cells. Its efficiency is expected to increase by introducing strain-balanced In_1-xGa_xP/In_1-yGa_yP multiple-quantum-wells since the concentration of photoexcited carriers into the wells enhances radiative recombination. To keep carrier collection efficiency to be similar to the case of a bulk InGaP cell, effective mobilities of carriers through the cascaded quantum wells are evaluated. The critical mobilities for maintaining good carrier transport as a photovoltaic device are discussed, which provides a general design principle for the multiplequantum- well architecture.

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Hsiang-Hung Huang, Kasidit Toprasertpong, Amaury Delamarre, Justin Zenas Sun, Kentaroh Watanabe, Masakazu Sugiyama, and Yoshiaki Nakano "Effective mobility map for InGaP/InGaP multiple quantum-well-based solar cells", Proc. SPIE 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII, 1091310 (27 February 2019); https://doi.org/10.1117/12.2508592

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