The binding energy of a shallow hydrogenic impurity in a spherical quantum dot under hydrostatic pressure with square well potential is calculated using a variational approach within the effective mass approximation. The effect of conduction band non-parabolicity on these energies is also estimated.
β¦ LIBER β¦
Conduction band non-parabolicity effect on the optical absorption coefficient and refractive index changes of spherical quantum dots
β Scribed by G. Rezaei; M.R.K. Vahdani; B. Vaseghi
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 479 KB
- Volume
- 406
- Category
- Article
- ISSN
- 0921-4526
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We carried out variational model calculations for the assessment of the combined effect of the nonparabolicity of the electron effective mass and the screening of the donor ion by the valence electrons of GaAs for a donor placed at the center of a spherical quantum dot. We considered finite confinin