EXCITON STATES IN A QUANTUM DOT WITH PARABOLIC CONFINEMENT

Dogan U., Sakiroglu S., Yildiz A., Akgungor K., Epik H., Sokmen I.

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, cilt.25, sa.32, ss.4489-4497, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 32
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1142/s0217979211059279
  • Dergi Adı: INTERNATIONAL JOURNAL OF MODERN PHYSICS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4489-4497
  • Sivas Cumhuriyet Üniversitesi Adresli: Hayır

Özet

In this study the electronic eigenstructure of an exciton in a parabolic quantum dot (QD) has been calculated with a high accuracy by using Finite element method (FEM). We have converted the coordinates of electron-light-hole system to relative and center of mass coordinate, then placed the Spherical Harmonics into Schrodinger equation analytically and obtained the Schrodinger equation which depends only on the radial variable. Finally we used FEM with only radial variable in order to get the accurate numerical results. We also showed first 21 energy level spectra of exciton depending on confinement and Coulomb interaction parameters.