https://doi.org/10.1140/epjp/s13360-023-04070-6
Regular Article
Modeling of the Stark shift and binding energy of shallow donor-impurity in 
core/shell quantum disk: effects of lateral directed applied electric field including the core/shell sizes
1
Laboratory of Solid State Physics, Nanomaterial and Renewable Energy Group/ Dynamic System Group, Department of Physics, Faculty of Sciences, Sidi Mohamed Ben Abdullah University, BP 1796, Fez, Morocco
2
OAPM 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, Regional Centre for the Professions of Education and Training, 60000, Oujda, Morocco
a
ibrahim.maouhoubi@usmba.ac.ma
Received:
18
January
2023
Accepted:
6
May
2023
Published online:
24
May
2023
Core/shell-shaped quantum nanostructures have been considered of great interest and promising systems for modern age and future electroluminescence and absorber devices. Thus, in the paper, we reported the Stark shift and binding energy of a shallow donor-impurity located in 
core/shell inhomogeneous thin quantum disk under the influences of an oriented electric field taking into account the quantum disk dimensions effect (inner/outer radius). Within the framework of the effective-mass approximation, the Schrödinger equation in the system has been solved using the two-dimensional finite deference element method considering the Dirichlet and Neumann types boundary conditions between the Core and Shell materials. Our results reveal that the orientation of the applied lateral electric field and the quantum disk dimensions (size effect) have significant influences on both the Stark shift and impurity binding energy. These findings are of great interests to complete previous theoretical studies related to Stark shift and impurity binding energy in quantum dots. Therefore, it could be beneficial for electro-modulator devices that modulate the intensity of a light beam with requiring a specific voltage for applied electric field intensity in the range 0–50kv/cm.
Copyright comment 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.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. 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.
