The position dependent band gap in Kane-type quantum dots

Babayev A. M.

PHYSICA SCRIPTA, vol.74, no.2, pp.267-270, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 74 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.1088/0031-8949/74/2/021
  • Journal Name: PHYSICA SCRIPTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.267-270
  • Süleyman Demirel University Affiliated: No


The energy spectrum of electrons in narrow band gap semiconductor nanocrystals which have position dependent band gap in an external non-uniform electric field which compensate the position dependence of the band edge of the valence band potential is studied theoretically taking into account the non-parabolicity of electrons in dispersion laws. The exact solutions of the Kane equations with strong spin-orbital interaction are determined via the band-gap changes as a function of position. The band edge gap potential is taken as the ring-shaped non-spherical oscillator potential V (r) = (gamma r(2))/(2) + (a)/(r(2)) + (b)/(r(2)sin(2) theta).