Self-polarization in spherical quantum dot

Tehnika

Trajić Jelena M.¹  Kostić Radmila S.¹  Stojanović Dušanka P.¹ 

[1] University of Belgrade, Institute of Physics, Belgrade-Zemun, Serbia;

关键词: self-polarization;    quantum dot;    Poisson equation;   

DOI  :  10.5937/tehnika1505747S

来源: DOAJ

【 摘 要 】

The electronic structures of CdS quantum dot (QD) with dielectric mismatch are calculated. Poisson equation is solved analitically in case of point charge placed inside semiconductor sphere embeded in dielectric matrix in case of different values of the dielectric permittivity of QD and matrix. The validity of the effective mass approximation for the conduction band is assumed. Schrödinger equation for one electron is solved analitically. On the basis of the Poisson equation solution self potential is examined and used as perturbation to calculate the self-polarization effect.

【 授权许可】

Unknown