Research Article

The Binding Energy of Impurities in the Asymmetrical Semi-Exponential Quantum Wells

Volume: 39 Number: 4 December 24, 2018
TR EN

The Binding Energy of Impurities in the Asymmetrical Semi-Exponential Quantum Wells

Abstract

Within the framework of effective-mass and envelope wave function approach, using a variational method, we have investigated the binding energy of shallow-donor impurities in an asymmetrical semi-exponential quantum wells (ASEQW). The obtained numerical results show that the structure parameters (σ and, V0) lead to significant changes in the impurity binding energy. Furthermore, these results show that the hydrogenic donor impurity binding energy may be increased or decreased as a function of the impurity position in quantum well.

Keywords

References

  1. [1]. Learitt R.P., Binding energies of hydrogenic impurities in parabolic quantum wells, Phys. Rev. B 36 (1987) 7650-7652.
  2. [2]. Zang J.X., RustgiM.L., Energy levels of a hydrogenic impurity in a parabolic quantum well with a magnetic field, Phys. Rev. B 48 (1993) 2465-2469.
  3. [3]. Niculescu E.C., Binding energy of a double donor in a parabolic quantum well, Phys. Lett. A 197 (1995) 330-334.
  4. [4]. Niculescu E.C., Donor impurity in a finite parabolic quantum well, Phys. Lett. A 213 (1996) 85-88.
  5. [5]. Kasapoglu E., Sarı H., Sokmen I., Binding energies of shallow donor impurities in different shaped quantum wells under an applied electric field, Physica B 339 (2003) 17-22.
  6. [6]. Karlsson K.F., Dupertuis M.A., Weman H., Kapon E., Fractional-dimensional excitonic absorption theory applied to V-groove quantum wires, Phys. Rev. B 70 (2004) 153306.
  7. [7]. Restrepo R.L., Giraldo E., Miranda G.L., Ospina W., Duque C.A., Hydrogenic donor impurity in parallel-triangular quantum wires: Hydrostatic pressure and applied electric field effects, Physica B 404 (2009) 5163-5166.
  8. [8]. Yesilgul U., Linear and nonlinear intersubband optical absorption coefficients and refractive index changes in symmetric double semi-V-shaped quantum wells, Journal of Luminescence 132 (2012) 765–773.

Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Authors

Publication Date

December 24, 2018

Submission Date

November 12, 2018

Acceptance Date

November 27, 2018

Published in Issue

Year 2018 Volume: 39 Number: 4

APA
Yeşilgül, Ü. (2018). The Binding Energy of Impurities in the Asymmetrical Semi-Exponential Quantum Wells. Cumhuriyet Science Journal, 39(4), 1015-1019. https://doi.org/10.17776/csj.481752

As of 2026, Cumhuriyet Science Journal will be published in six issues per year, released in February, April, June, August, October, and December