The effects of temperature and pressure on the optical properties of a donor impurity in (In, Ga) N/GaN multilayer cylindrical quantum dots

M Jaouane, A Sali, A Fakkahi, R Arraoui… - Micro and Nanostructures, 2022 - Elsevier
This paper examines the variation of the linear, third-order nonlinear and total intersubband
optical absorption (refractive index changes) coefficients of a donor impurity in multilayer …

Study of hydrostatic pressure, electric and magnetic fields effects on the donor binding energy in multilayer cylindrical quantum dots

M Jaouane, A Sali, A Ezzarfi, A Fakkahi… - Physica E: Low …, 2021 - Elsevier
The current paper provides a theoretical study of the binding energy of an off-center donor
impurity in wurtzite I n G a N/G a N multilayer cylindrical quantum dots (MCQDs). The …

Electronic properties and hydrogenic impurity binding energy of a new variant quantum dot

L Belamkadem, O Mommadi, JA Vinasco… - Physica E: Low …, 2021 - Elsevier
In this work, we have studied the electronic states with and without a donor impurity
positioned on the first rectangular-shaped surface (θ= 0°) of the new variant quantum dot …

Polaronic mass and non-parabolicity effects on the photoionization cross section of an impurity in a double quantum dot

R Arraoui, A Sali, A Ed-Dahmouny, M Jaouane… - Superlattices and …, 2021 - Elsevier
This manuscript focused on the effect of the non-parabolicity and the polaronic mass on the
optical and electronic properties in the G a A s− G a 1− x A lx A s symmetrical double …

Effect of electric field on photoionisation cross-section of impurity in multilayered quantum dot

V Holovatsky, M Chubrey, O Voitsekhivska - Superlattices and …, 2020 - Elsevier
The electron-impurity binding energy and photoionization cross-section of hydrogenic
impurity are studied in spherical multilayered quantum dot Al x Ga 1-x As/GaAs/Al y Ga 1-y …

The influence of the electric and magnetic fields on donor impurity electronic states and optical absorption coefficients in a core/shell GaAs/AlGaAs ellipsoidal …

A Ed-Dahmouny, R Arraoui, M Jaouane… - … Physical Journal Plus, 2023 - epjplus.epj.org
The lowest five energies levels (ELs) and optical absorption coefficient (OAC) of confined
donor in a core/shell ellipsoidal quantum dot were theoretically investigated under the …

The third-order nonlinear optical susceptibility in an ellipsoidal core-shell quantum dot embedded in various dielectric surrounding matrices

A Ed-Dahmouny, N Zeiri, R Arraoui, N Es-Sbai… - Physica E: Low …, 2023 - Elsevier
The finite-element method (FEM) and the effective-mass approximation (EMA) were used in
this study to evaluate the energy eigenvalues and describe the third-order susceptibility for …

Polaron and conduction band non-parabolicity effects on the binding energy, diamagnetic susceptibility and polarizability of an impurity in quantum rings

K El-Bakkari, A Sali, E Iqraoun, A Ezzarfi - Superlattices and …, 2020 - Elsevier
By employing a variational approach, we have investigated the effect of conduction band
non-parabolicity (NP) on the binding energy (E b) and the susceptibility diamagnetic (χ dia) …

The spatial electric field effect on the impurity binding energy and self-polarization in a double quantum dot

R Arraoui, A Sali, A Ed-Dahmouny, K El-Bakkari… - The European Physical …, 2022 - Springer
This paper provides a theoretical investigation of the binding energy E b and self-
polarization of a hydrogenic shallow donor impurity located in a GaAs-Ga 1-x Al x As double …

Impurity photo-ionization cross section and stark shift of ground and two low-lying excited electron-states in a core/shell ellipsoidal quantum dot

A Ed-Dahmouny, N Zeiri, A Fakkahi, R Arraoui… - Chemical Physics …, 2023 - Elsevier
A new investigation on photo-ionization cross section (PICS) of a donor impurity confined in
a GaAs/AlGaAs core/shell elliptic quantum dots (CSEQDs) has been performed under …