Numerical investigation on the structural characteristics of GaN/InGaN solar cells

Yen-Kuang Kuo; Jih-Yuan Chang; Shih-Hsun Yen

doi:10.1117/12.2003716

25 March 2013 Numerical investigation on the structural characteristics of GaN/InGaN solar cells

Yen-Kuang Kuo, Jih-Yuan Chang, Shih-Hsun Yen

Proceedings Volume 8620, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II; 862021 (2013) https://doi.org/10.1117/12.2003716
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

In traditional III-nitride solar cells, the polarization-induced charges and potential barrier in the hetero-interfaces are demonstrated to be harmful for carrier collection. To solve these challenges, the elimination or mitigation of the abrupt hetero-interfaces should be efficient. In this study, various kinds of solar cell structures are investigated numerically. The structures under various situations of indium composition and degree of polarization are systematically explored. Specifically, the photovoltaic performance, energy band diagrams, electrostatic fields, and recombination rates are analyzed. Then, according to the simulation results, the appropriate solar cell structure which possesses high conversion efficiency is proposed.

Citation Download Citation

Yen-Kuang Kuo, Jih-Yuan Chang, and Shih-Hsun Yen "Numerical investigation on the structural characteristics of GaN/InGaN solar cells", Proc. SPIE 8620, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II, 862021 (25 March 2013); https://doi.org/10.1117/12.2003716

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