Modeling of quantum dots with the finite element method

GA Mantashian, PA Mantashyan, DB Hayrapetyan - Computation, 2023 - mdpi.com
Considering the increasing number of experimental results in the manufacturing process of
quantum dots (QDs) with different geometries, and the fact that most numerical methods that …

Deformation potentials of CdSe quantum dots

J Li, LW Wang - Applied physics letters, 2004 - pubs.aip.org
The size-dependent deformation potentials of CdSe quantum dots are studied by first-
principle and semiempirical pseudopotential calculations. We find that the amplitude of the …

Effect of shape anisotropy and size on the electronic structure of CdSe/ZnSe quantum dots

D Kumar, CMS Negi, SK Gupta… - IEEE transactions on …, 2013 - ieeexplore.ieee.org
The effect of shape anisotropy and size on the electronic structure of CdSe/ZnSe quantum
dots is theoretically investigated. The quantum dot is modeled by assuming a parabolic …

Energy spectrum and oscillator strengths for spherical, conical and cylindrical CdSe quantum dots

B Bochorishvili, HM Polatoglou - IOP Conference Series …, 2009 - iopscience.iop.org
We theoretically explore spherical, cylindrical and conical CdSe quantum dots (QDs)
embedded in ZnSe. The electronic states close to the fundamental gap are of specific …

Numerical modeling of the InAs quantum dot with application of coordinate transformation and the finite difference method

A Bouazra, S Mnasri, SAB Nasrallah, M Said - Computer Physics …, 2014 - Elsevier
In order to resolve the three dimensional Schrödinger equation, we report in this paper a
method providing sufficient accuracy, stability and flexibility with respect to the size and …

[PDF][PDF] Simulation of quantum dots (QDs) in the confinement regime

EO Chukwuocha, MC Onyeaju - Int. Journal of Applied Sciences …, 2012 - researchgate.net
The ground state confinement energy and its associated wavelength as a function of radius
for three different semiconductor quantum dots (QDs) were calculated using the Brus …

Mathematical modelling of optical properties of CdSe/ZnS core shell quantum dot

A Bouazra, A Naifar, SAB Nasrallah, M Said - Optik, 2018 - Elsevier
In this paper, the electron and hole energies are computed for core/shell quantum dots
(CSQDs) using two ways. First, we have resolved the three dimensional Schrödinger …

Finite element method for electronic properties of semiconductor nanocrystals

F Qu, AM Alcalde, CG Almeida… - Journal of applied physics, 2003 - pubs.aip.org
The finite element method (FEM) has been implemented in order to investigate the
electronic structure of spherical quantum dots (SQDs) in an external magnetic field. The …

Effect of dielectric constant on emission of CdSe quantum dots

JL Casas Espínola… - Journal of Materials …, 2017 - Springer
The effect of dielectric constant on the exciton ground state energy of CdSe Quantum Dots
(QD) is investigated on four different QD sizes (2.46, 2.60, 2.71, and 2.8 nm). We studied (1) …

Numerical modeling for computation of confined energy states in oblate spheroidal quantum dots: effect of dot size, eccentricity and surrounding matrix

D Maikhuri, S Manna - The European Physical Journal Plus, 2021 - Springer
We analytically and numerically investigate the energy states of an electron confined in the
conduction band of oblate spheroidal CdSe quantum dot with finite barrier height. The …