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, cilt.36, sa.1, ss.40-44, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 1
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.physe.2006.07.040
  • Dergi Adı: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.40-44
  • Anahtar Kelimeler: oscillator strengths, quantum dots, impurity, intersubband transitions, OPTICAL-ABSORPTION, WELL, STATES, PHOTOIONIZATION, FIELD
  • Yozgat Bozok Üniversitesi Adresli: Evet

Özet

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.