Analytical formulation for exciton in semiconductor quantum dot with parabolic confinement

被引：0
|
作者：
EL Haddad, A. [1 ]
机构：
[1] Reg Ctr Educ & Training Profess, Dept Phys Sci, Ave My Abdelaziz Souani, Tangier 90100, Morocco
来源：
CANADIAN JOURNAL OF PHYSICS | 2023年
关键词：
exciton; binding energy; photoluminescence energy transition; aluminum concentration; oscillator strength; OPTICAL-PROPERTIES; HYDROSTATIC-PRESSURE; BINDING-ENERGY; TEMPERATURE; COEFFICIENTS; IMPURITIES; SINGLE; STATES; WELL;
D O I：
10.1139/cjp-2023-0034
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The exciton properties in cubical quantum dot (CQD), with parabolic confining potential, are theoretically investigated. We have used the two-band model, the effective mass approximation, and the variational method. The analytical expressions of the binding energy, the normalized photoluminescence (PL) energy transition, the spatial extension, and the oscillator strength of the exciton, in the ground state, have been obtained. The numerical calculations for the typical GaAs/AlxGa1-xAs CQD are presented. The effects of the CQD length and the Al concentration on the exciton properties are discussed. The results of the calculation illuminate that Al concentration and the CQD length can make an important impact on the exciton binding energy and the PL peak energy.
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收藏
页码：11 / 18
页数：8
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