中国物理B ›› 2016, Vol. 25 ›› Issue (12): 127302-127302.doi: 10.1088/1674-1056/25/12/127302

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Hydrostatic pressure and temperature effects on the binding energy and optical absorption of a multilayered quantum dot with a parabolic confinement

Sami Ortakaya, Muharrem Kirak   

  1. 1. Department of Physics, Erciyes University, 38039 Kayseri, Turkiye;
    2. Faculty of Education, Bozok University, 66200 Yozgat, Turkiye
  • 收稿日期:2016-03-02 修回日期:2016-06-22 出版日期:2016-12-05 发布日期:2016-12-05
  • 通讯作者: Muharrem Kirak E-mail:muharrem.kirak@bozok.edu.tr

Hydrostatic pressure and temperature effects on the binding energy and optical absorption of a multilayered quantum dot with a parabolic confinement

Sami Ortakaya1, Muharrem Kirak2   

  1. 1. Department of Physics, Erciyes University, 38039 Kayseri, Turkiye;
    2. Faculty of Education, Bozok University, 66200 Yozgat, Turkiye
  • Received:2016-03-02 Revised:2016-06-22 Online:2016-12-05 Published:2016-12-05
  • Contact: Muharrem Kirak E-mail:muharrem.kirak@bozok.edu.tr

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摘要：

The influence of hydrostatic pressure, temperature, and impurity on the electronic and optical properties of spherical core/shell/well/shell (CSWS) nanostructure with parabolic confinement potential is investigated theoretically. The energy levels and wave functions of the structure are calculated by using shooting method within the effective-mass approximation. The numerical results show that the ground state donor binding energy as a function layer thickness very sensitively depends on the magnitude of pressure and temperature. Also, we investigate the probability distributions to understand clearly electronic properties. The obtained results show that the existence of the pressure and temperature has great influence on the electronic and optical properties.

关键词: multilayers, impurity, pressure, nonlinear optics

Abstract:

The influence of hydrostatic pressure, temperature, and impurity on the electronic and optical properties of spherical core/shell/well/shell (CSWS) nanostructure with parabolic confinement potential is investigated theoretically. The energy levels and wave functions of the structure are calculated by using shooting method within the effective-mass approximation. The numerical results show that the ground state donor binding energy as a function layer thickness very sensitively depends on the magnitude of pressure and temperature. Also, we investigate the probability distributions to understand clearly electronic properties. The obtained results show that the existence of the pressure and temperature has great influence on the electronic and optical properties.

Key words: multilayers, impurity, pressure, nonlinear optics

中图分类号:  (Multilayers)

  • 73.21.Ac
62.50.-p (High-pressure effects in solids and liquids) 73.20.Hb (Impurity and defect levels; energy states of adsorbed species) 42.65.-k (Nonlinear optics)