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Vol. 37 No. 5 (2025): Vol 37 Issue 5, 2025

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Enhancing Solar Cell Efficiency with GaAs/Al0.3Ga0.7As Systems: Electronic and Optical Properties Analysis

https://doi.org/10.14233/ajchem.2025.33562
A. Hmairrou
Laboratory of Physical Chemistry of Applied Materials, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
E.H. Chahid
Laboratory of Physical Chemistry of Applied Materials, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco; Research Laboratory in Physics and Sciences for Engineers, Polydisciplinary Faculty, Sultan Moulay Slimane University, Beni Mellal, Morocco; Laboratory of Materials, Energy and Control Systems, FST Mohammedia, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
M. Azza
Laboratory of Physical Chemistry of Applied Materials, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
https://orcid.org/0000-0002-1586-7876
Y. Rachdi
Laboratory of Physical Chemistry of Applied Materials, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
https://orcid.org/0009-0003-1361-9064
N. Jarmouni
Laboratory of Physical Chemistry of Applied Materials, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
https://orcid.org/0000-0002-0111-825X
A. Amine
Laboratory of Materials, Energy and Control Systems, FST Mohammedia, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco; Laboratory of Instrumentation Measurements and Control, Chouaib Doukkali University, El Jadida, Morocco
https://orcid.org/0000-0002-2008-8834
Y. Mir
Laboratory of Materials, Energy and Control Systems, FST Mohammedia, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
https://orcid.org/0000-0001-7698-8797
M. Zazoui
Laboratory of Materials, Energy and Control Systems, FST Mohammedia, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
https://orcid.org/0000-0003-2739-628X
A. Malaoui
Research Laboratory in Physics and Sciences for Engineers, Polydisciplinary Faculty, Sultan Moulay Slimane University, Beni Mellal, Morocco
S. Belaaouad
Laboratory of Physical Chemistry of Applied Materials, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, B.P. 7955, Bd Cdt Driss El Harti, Casablanca, Morocco
https://orcid.org/0000-0002-9815-0933

Corresponding Author(s) : Y. Rachdi

rachdi.smc@gmail.com

Asian Journal of Chemistry, Vol. 37 No. 5 (2025): Vol 37 Issue 5, 2025

Abstract

This study aims to enhance the optical and electrical performance of GaAs (gallium arsenide) solar cells by incorporating p-type and n-type Al0.3Ga0.7As layers. The physical parameters were simulated by using density functional theory (DFT) through generalized gradient approximation (GGA) for potential exchange-correlation from implementation Win2K code. The SCAPS software and impedance spectroscopy method were also used to investigate the solar cell characteristics. Our findings demonstrate that adding these layers significantly improves efficiency by 31% compared to a standard GaAs pin-junction structure. This enhancement is attributed to optimized light absorption and reflection through doping, leading to a high-performance solar cell.

Keywords

Gallium-Arsenide solar cells Electronic properties Optical properties Doping Impedance spectroscopy
(1)
Hmairrou, A.; Chahid, E.; Azza, M.; Rachdi, Y.; Jarmouni, N.; Amine, A.; Mir, Y.; Zazoui, M.; Malaoui, A.; Belaaouad, S. Enhancing Solar Cell Efficiency With GaAs Al0.3Ga0.7As Systems: Electronic and Optical Properties Analysis. ajc 2025, 37, 1111-1117.
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