Oscillator strengths for the intersubband transitions in a CdS-SiO2 quantum dot with hydrogenic impurity


Yilmaz S. , Safak H.

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, vol.36, no.1, pp.40-44, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 1
  • Publication Date: 2007
  • Doi Number: 10.1016/j.physe.2006.07.040
  • Title of Journal : PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
  • Page Numbers: pp.40-44
  • Keywords: oscillator strengths, quantum dots, impurity, intersubband transitions, OPTICAL-ABSORPTION, WELL, STATES, PHOTOIONIZATION, FIELD

Abstract

In this study, we have calculated the oscillator strengths for intersubband electronic transitions associated with an on-center impurity in a spherical quantum dot. Numerical calculations have been performed for both infinite confinement case and for different finite confining potential values in a spherical CdS/SiO2 quantum dot. Also, for comparison purpose, oscillator strengths for a spherical ZnS/SiO2 quantum dot with an infinite confinement potential are evaluated. (c) 2006 Elsevier B.V. All rights reserved.