Computational investgation of the optical properties of GaAs/Ga0.7Al0.3 Core/Shell Thin Film for optoelectronic Applications: under tuned external field and impurity effects

被引：3

作者：

Maouhoubi, Ibrahim ^{[1
]}

Chouef, Soufiane ^{[2
]}

Mommadi, Omar ^{[2
]}

En-nadir, Redouane ^{[1
]}

Zorkani, Izeddine ^{[1
]}

Hassani, Abdallah Ouazzani Tayebi ^{[1
]}

El Moussaouy, Abdelaziz ^{[2
,3
]}

Jorio, Anouar ^{[1
]}

机构：

[1] Sidi Mohamed Ben Abdellah Univ, Fac Sci Dhar Mahraz, Grp Nanomat & Renewable Energies, Dept Phys,Solid Phys Lab, BP 1796, Fes, Morocco

[2] Univ Mohamed I, Fac Sci, Dept Phys, bOAPM Grp,Lab Mat Energy & Environm, Oujda 60000, Morocco

[3] Reg Ctr Profess Educ & Training, Lab Innovat Sci Technol & Educ, Oujda 60000, Morocco

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2024年 / 299卷

关键词：

Oscillator strength; Optical properties; GaAs/AlGaAs; Core/Shell; Electric field; Donor-Impurity; ELECTRIC-FIELD; QUANTUM-WELL; ABSORPTION; DONOR; DOTS;

D O I：

10.1016/j.mseb.2023.116988

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study provides valuable insights into the optical properties of GaAs/Ga0.7Al0.3As core/shell quantum disks, including optical transitions, oscillator strength, linear optical absorption coefficient, and refractive index. We investigate these properties by employing the finite difference method. The Schro center dot dinger equation has been solved within the effective-mass theory. However, our results reveal that adjustments in core/shell radii and electric field direction induce red-shifted resonance peaks, accompanied by improved magnitudes. Furthermore, strategically placing impurities within the core-shell region substantially enhances these optical properties. These discoveries carry the potential to catalyze groundbreaking progress and unveil fresh opportunities for technological innovation in the realm of nanostructured semiconductor devices.

引用

页数：13

共 45 条

[1]

Ahmed NM, 2009, INT J NANOELECTRON M, V2, P189

[2] INTERSUBBAND OPTICAL-ABSORPTION IN A QUANTUM-WELL WITH AN APPLIED ELECTRIC-FIELD [J].