Infrared relative dielectric permittivity and refractive index on the spherical CdSe/ZnS heteronanocrystals with self-consistent field

Abstract

We deal with allowed-subband quantum states of two-electron in a semiconductor spherical core/shell quantum dot. Within framework of the infrared transitions, solving the Schrödinger-Poisson equation for many body interactions on the conduction-subbands, we obtain energy shifts in the absorption peaks of dielectric function and refractive index. The energy eigenvalues of the CdSe/ZnS nanocrystal have been computed as a function of the layer thicknesses via self-consistent field. The transitions related to $D^{-}$ and $D^0$ states, have been plotted considering linear dielectric permittivity. Refractive index and absorption coefficient under 3.0 nm radius have been also presented as a function of infrared photon energies.