The position dependent band gap in Kane-type quantum dots
PHYSICA SCRIPTA, cilt.74, sa.2, ss.267-270, 2006 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 74 Sayı: 2
- Basım Tarihi: 2006
- Doi Numarası: 10.1088/0031-8949/74/2/021
- Dergi Adı: PHYSICA SCRIPTA
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.267-270
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
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).