https://doi.org/10.1140/epjp/s13360-024-05164-5
Regular Article
Effects of surface curvature and electric field on electronic and optical properties of an off-center hydrogenic donor impurity in 2D nanostructures
1
OAPM Group, Laboratory of Materials, Waves, Energy and Environment, Department of Physics, Faculty of Sciences, University Mohamed I, 60000, Oujda, Morocco
2
MEGCE Group, Laboratory of Materials, Waves, Energy and Environment, Department of Physics, Faculty of Sciences, University Mohamed I, 60000, Oujda, Morocco
3
Laboratory of Innovation in Science, Technology and Education, CRMEF, 60000, Oujda, Morocco
4
Department of Nanotechnology Engineering, Abdullah Gul University, Sumer Campus, 38080, Kayseri, Turkey
5
Grupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
Received:
28
November
2023
Accepted:
7
April
2024
Published online:
4
May
2024
In this study, we have explored how the curvature of a surface affects the electronic and optical properties of hydrogenic donor impurity within both flat and curved two-dimensional nanostructure, subject to an external electric field. In order to ascertain the energy states and their associated wave functions, we have numerically solved the Schrödinger equation using the effective mass approximation and finite difference method. Utilizing the resulting energy values and wave functions, we have computed binding energy, transition energy, curvature effect, optical absorption coefficient, and oscillator strength of an off-center hydrogenic impurity in a 2D quantum dot nanostructure. Furthermore, we have conducted a thorough analysis of how an electric field and geometrical confinement influence the spectrum of a confined electron-impurity. Our findings reveal that variations in radius and angle of curvature, applied electric field, and impurity position exert profound impacts on the electronic and optical properties of 2D-nanostructures.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
