E. Feddi
YOU?
Author Swipe
View article: Energy and Nonextensive Entropy of Exciton-Polaron in Graphene under Electromagnetic Field
Energy and Nonextensive Entropy of Exciton-Polaron in Graphene under Electromagnetic Field Open
View article: Electron trapping via magnetic and laser fields in gapped graphene quantum dots
Electron trapping via magnetic and laser fields in gapped graphene quantum dots Open
We study electron scattering in graphene quantum dots (GQDs) under the combined influence of a magnetic field, an energy gap, and circularly polarized laser irradiation. Using the Floquet approach and the Dirac equation, we derive the ener…
View article: Relativistic bound state solutions and quantum information theory in D dimensions under exponential-type plus Yukawa potentials
Relativistic bound state solutions and quantum information theory in D dimensions under exponential-type plus Yukawa potentials Open
The bound-state solution of the radial Klein-Gordon equation has been obtained under the interaction of an exponential-type and Yukawa potential functions. The Greene-Aldrich approximation has been used to overcome the centrifugal barrier …
View article: Optical properties of a hollow cylindrical quantum wire in a parallel applied magnetic field
Optical properties of a hollow cylindrical quantum wire in a parallel applied magnetic field Open
In this theoretical study, we investigate optical properties of a hollow cylindrical quantum wire in the presence of a homogeneous magnetic field. The magnetic field is applied parallel to the axis of the quantum wire. The investigations w…
View article: Bound state solutions of the radial Klein-Gordon equation: Application to D- dimensional quantum information theory under exponential-type plus Yukawa potentials
Bound state solutions of the radial Klein-Gordon equation: Application to D- dimensional quantum information theory under exponential-type plus Yukawa potentials Open
The bound-state solution of the Klein-Gordon equation has been obtained under the interaction of an exponential-type and Yukawa potential functions. The Greene-Aldrich approximation has been used to overcome the centrifugal barrier and ena…
View article: Susceptibility in a Coupled Double Quantum Dot-Metal Nanoparticle System under Standing Wave Field
Susceptibility in a Coupled Double Quantum Dot-Metal Nanoparticle System under Standing Wave Field Open
The main purpose of this work is studying the linear Susceptibility in the hybrid nanostructure that composed of a dual quantum dot (DQD) and metal nanoparticle (MNP) hybrid system under a standing-wave field. In our model, we used density…
View article: Unraveling the effects of non-parabolicity on electron energy levels in InP/InAs/InP heterostructures
Unraveling the effects of non-parabolicity on electron energy levels in InP/InAs/InP heterostructures Open
In this research, electron energy levels were calculated analytically using Nelson’s formula, the shooting method, and Garrett’s formula for effective mass. These calculations were performed for a rectangular finite deep potential well, fo…
View article: Unveiling the Role of Donor Impurity Position on the Electronic Properties in Strained Type I and Type II Core/Shell Quantum Dots under Magnetic Field
Unveiling the Role of Donor Impurity Position on the Electronic Properties in Strained Type I and Type II Core/Shell Quantum Dots under Magnetic Field Open
In this theoretical investigation, we delve into the significant effects of donor impurity position within core/shell quantum dot structures: type I (CdTe/ZnS) and type II (CdTe/CdS). The donor impurity’s precise location within both the c…
View article: First Principle Study on the Effect of Strain on the Electronic Structure and Carrier Mobility of the Janus MoSTe and WSTe Monolayers
First Principle Study on the Effect of Strain on the Electronic Structure and Carrier Mobility of the Janus MoSTe and WSTe Monolayers Open
Using first-principle calculations, we investigate the impact of strain on the electronic structures and effective masses of Janus WSTe and MoSTe monolayers. The calculations were performed using the QUANTUM-ESPRESSO package, employing the…
View article: Analytical Modeling and Optimization of Cu2ZnSn(S,Se)4 Solar Cells with the Use of Quantum Wells under the Radiative Limit
Analytical Modeling and Optimization of Cu2ZnSn(S,Se)4 Solar Cells with the Use of Quantum Wells under the Radiative Limit Open
In this work, we present a theoretical study on the use of Cu2ZnSn(S,Se)4 quantum wells in Cu2ZnSnS4 solar cells to enhance device efficiency. The role of different well thickness, number, and S/(S + Se) composition values is evaluated. Th…
View article: Applications of Hybrid Metal Nanoparticle-Quantum Dot in Biomedical Applications
Applications of Hybrid Metal Nanoparticle-Quantum Dot in Biomedical Applications Open
Nanomaterials are at the forefront of the fast-paced development of nanotechnology. These materials are outstanding and indispensable in various human activities as long as their size-dependent characteristics. One of the most promising ap…
View article: Intense Laser Field Effect on the Photo-Ionization Cross-Section of the First Exciton Transition in a Core/Shell Quantum Dot Submitted to an Applied Electric Field
Intense Laser Field Effect on the Photo-Ionization Cross-Section of the First Exciton Transition in a Core/Shell Quantum Dot Submitted to an Applied Electric Field Open
In the current work, we study the intense laser pulse influences on the behaviors of the first excitonic transition in a core/shell quantum dot submitted to an electric field. Therefore, the exciton binding energy and the mean distance bet…
View article: Optical Gain of a Spherical InAs Quantum Dot under the Effects of the Intense Laser and Magnetic Fields
Optical Gain of a Spherical InAs Quantum Dot under the Effects of the Intense Laser and Magnetic Fields Open
In quantum dots, where confinement is strong, interactions between charge carriers play an essential role in the performance of semiconductor materials for optical gain. Therefore, understanding this phenomenon is critical for achieving ne…
View article: Tuning the Electronic Properties of Janus GeSnS2 Monolayers through Strain and Electric Field
Tuning the Electronic Properties of Janus GeSnS2 Monolayers through Strain and Electric Field Open
This study investigates the electronic properties of a single layer of the novel Janus material GeSnS2 using density functional theory. By utilizing the hybrid functional HSE06 in addition to the standard PBE approximation, the study aims …
View article: Optoelectronic Properties of a Cylindrical Core/Shell Nanowire: Effect of Quantum Confinement and Magnetic Field
Optoelectronic Properties of a Cylindrical Core/Shell Nanowire: Effect of Quantum Confinement and Magnetic Field Open
This study investigates the effect of quantum size and an external magnetic field on the optoelectronic properties of a cylindrical AlxGa1−xAs/GaAs-based core/shell nanowire. We used the one-band effective mass model to describe the Hamilt…
View article: Optical properties of donor impurity in Yukawa like potential: application to SiGe/Si and Si/SiGe
Optical properties of donor impurity in Yukawa like potential: application to SiGe/Si and Si/SiGe Open
We have investigated the effect of temperature and geometrical confinement on the behavior of spherical cavities with Yukawa potential presence inside the cavity within effective mass approximation. Using the Finite-element method, we have…
View article: Importance of core and shell sizes in the localization of the electron and hole in the formation of type I or type II excitons in spherical CdSe/ZnTe and CdSe/CdTe quantum dots.
Importance of core and shell sizes in the localization of the electron and hole in the formation of type I or type II excitons in spherical CdSe/ZnTe and CdSe/CdTe quantum dots. Open
Semiconductor core/shell quantum dots represent a promising class of nanostructure that can provide new techniques of control for performing the electronic and optical properties. Through each combination formed by the core and the shell r…
View article: Ab Initio Study of Carrier Mobility, Thermodynamic and Thermoelectric Properties of Kesterite Cu2ZnGeS4
Ab Initio Study of Carrier Mobility, Thermodynamic and Thermoelectric Properties of Kesterite Cu2ZnGeS4 Open
The kesterite Cu2ZnGeS4 (CZGS) has recently gained significant interest in the scientific community. In this work, we investigated the thermodynamic and thermoelectric properties of CZGS by employing the first-principals calculation in ass…
View article: Rashba effect on linear and nonlinear optical properties of a cylindrical core/shell heterojunction quantum dot
Rashba effect on linear and nonlinear optical properties of a cylindrical core/shell heterojunction quantum dot Open
Rashba effect may play an important role in the nonlinear optical properties of heterojunction quantum dots. In this work, we have theoretically examined the effects of Rashba spin-orbit interaction on an electron in a cylindrical core/she…
View article: Parameters Optimization of Intermediate Band Solar Cells: Cases of PbTe/CdTe, PbSe/ZnTe and InN/GaN Quantum Dots
Parameters Optimization of Intermediate Band Solar Cells: Cases of PbTe/CdTe, PbSe/ZnTe and InN/GaN Quantum Dots Open
Photovoltaic cells, based on quantum dots implementation in the intrinsic region, are one of the most widely studied concepts nowadays to obtain a high solar conversion efficiency. The challenge in this third generation of solar cells is t…
View article: Strain Effects on the Electronic and Optical Properties of Kesterite Cu2ZnGeX4 (X = S, Se): First-Principles Study
Strain Effects on the Electronic and Optical Properties of Kesterite Cu2ZnGeX4 (X = S, Se): First-Principles Study Open
Following the chronological stages of calculations imposed by the WIEN2K code, we have performed a series of density functional theory calculations, from which we were able to study the effect of strain on the kesterite structures for two …
View article: Adjustment of Terahertz Properties Assigned to the First Lowest Transition of (D+, X) Excitonic Complex in a Single Spherical Quantum Dot Using Temperature and Pressure
Adjustment of Terahertz Properties Assigned to the First Lowest Transition of (D+, X) Excitonic Complex in a Single Spherical Quantum Dot Using Temperature and Pressure Open
This theoretical study is devoted to the effects of pressure and temperature on the optoelectronic properties assigned to the first lowest transition of the (D+,X) excitonic complex (exciton-ionized donor) inside a single AlAs/GaAs/AlAs sp…
View article: Quantum Confined Stark Effect on the Linear and Nonlinear Optical Properties of SiGe/Si Semi Oblate and Prolate Quantum Dots Grown in Si Wetting Layer
Quantum Confined Stark Effect on the Linear and Nonlinear Optical Properties of SiGe/Si Semi Oblate and Prolate Quantum Dots Grown in Si Wetting Layer Open
We have studied the parallel and perpendicular electric field effects on the system of SiGe prolate and oblate quantum dots numerically, taking into account the wetting layer and quantum dot size effects. Using the effective-mass approxima…
View article: Anisotropy of effective masses induced by strain in Janus MoSSe and WSSe monolayers
Anisotropy of effective masses induced by strain in Janus MoSSe and WSSe monolayers Open
View article: Influence of Geometrical Shape on the Characteristics of the Multiple InN/InxGa1−xN Quantum Dot Solar Cells
Influence of Geometrical Shape on the Characteristics of the Multiple InN/InxGa1−xN Quantum Dot Solar Cells Open
Solar cells that are based on the implementation of quantum dots in the intrinsic region, so-called intermediate band solar cells (IBSCs), are among the most widely used concepts nowadays for achieving high solar conversion efficiency. The…
View article: Donor impurity energy and optical absorption in spherical sector quantum dots
Donor impurity energy and optical absorption in spherical sector quantum dots Open
The properties of the conduction band energy states of an electron interacting with a donor impurity center in spherical sector-shaped GaAs-Al0.3Ga0.7As quantum dots are theoretically investigated. The study is perfor…
View article: Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots
Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dots Open
The polaronic effect on the linear, third-order nonlinear and total optical absorption coefficients have been calculated in the case of GaAs/AlAs core/shell quantum dot, with the impurity is positioned at the central radial position of the…
View article: Impact of heavy hole levels on the photovoltaic conversion efficiency of In Ga1−N/InN quantum dot intermediate band solar cells
Impact of heavy hole levels on the photovoltaic conversion efficiency of In Ga1−N/InN quantum dot intermediate band solar cells Open
View article: Control of simultaneous effects of the temperature, indium composition and the impact ionization process on the performance of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si15.gif" overflow="scroll"><mml:mi>I</mml:mi><mml:mi>n</mml:mi><mml:mi>N</mml:mi><mml:mo>/</mml:mo><mml:msub><mml:mrow><mml:mi>I</mml:mi><mml:mi>n</mml:mi></mml:mrow><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mrow><mml:mi>G</mml:mi><mml:mi>a</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>-</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:mi>N</mml:mi></mml:math> quantum dot solar cells
Control of simultaneous effects of the temperature, indium composition and the impact ionization process on the performance of the quantum dot solar cells Open
The impact ionization in semiconductor materials is a process that produces multiple charge carrier pairs from a single excitation.This mechanism constitutes a possible road to increase the efficiency of the p-n and p-i-n solar cells junct…
View article: Electronic states in GaAs-(Al,Ga)As eccentric quantum rings under nonresonant intense laser and magnetic fields
Electronic states in GaAs-(Al,Ga)As eccentric quantum rings under nonresonant intense laser and magnetic fields Open