静水压力和温度下多层量子点的非束缚激子性质

Q4 Physics and Astronomy

Defect and Diffusion Forum Pub Date : 2023-08-22 DOI:10.4028/p-ufLk2M

M. Hbibi, O. Mommadi, S. Chouef, R. Boussetta, M. Chnafi, L. Belamkadem, A. El Moussaouy, C. M. Duque, C. A. Duque, F. Falyouni

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引用次数: 0

摘要

考虑到有效质量近似和双频带模型，我们研究了静水压力和温度对圆柱形量子点非束缚激子性质的综合影响。考虑了两个沿径向方向的有限约束势和一个沿轴向方向的有限限制势。我们已经计算了有和没有光空穴效应的电子能作为核心半径、静水压力和温度的函数。数值结果表明，约束势的影响大于静水压力和温度的影响。此外，光空穴效应对电子性质的影响主要是在外部扰动下

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Unbound Excitonic Properties in a Multilayered Quantum Dot under Hydrostatic Pressure and Temperature

Taking into account the effective mass approximation and the two-band model, we have studied the combined effects of hydrostatic pressure and temperature on the unbound excitonic properties of a cylinder-shaped quantum dot. The two finite confinement potentials along the radial direction and one finite confinement potential along the axial direction have been considered. We have calculated the electronic energy with and without light hole effect as a function of the core radius, hydrostatic pressure and temperature. The numerical results show that the effect of the confinement potential is dominant over the effect of the hydrostatic pressure and the temperature. Also, the light hole effect on the electronic properties has a significant influence mainly under the external perturbation

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来源期刊

Defect and Diffusion Forum Physics and Astronomy-Radiation

CiteScore

1.20

自引率

0.00%

发文量

127

期刊介绍： Defect and Diffusion Forum (formerly Part A of ''''Diffusion and Defect Data'''') is designed for publication of up-to-date scientific research and applied aspects in the area of formation and dissemination of defects in solid materials, including the phenomena of diffusion. In addition to the traditional topic of mass diffusion, the journal is open to papers from the area of heat transfer in solids, liquids and gases, materials and substances. All papers are peer-reviewed and edited. Members of Editorial Boards and Associate Editors are invited to submit papers for publication in “Defect and Diffusion Forum” . Authors retain the right to publish an extended and significantly updated version in another periodical.