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00925njm 22002777a 4500 dc Planelles, Josep (Planelles Fuster) author Royo, Miguel author Pi Pericay, Martí author 2012-04-19T09:22:00Z 2012-04-19T09:22:00Z 2007-11-02 An extension of the spin density functional theory simultaneously accounting for dielectric mismatch between neighboring materials and nonparabolicity corrections originating from interactions between conduction and valence bands is presented. This method is employed to calculate ground state and addition energy spectra of homogeneous and multishell spherical quantum dots. Our calculations reveal that corrections become especially relevant when they come into play simultaneously in strong regimes of spatial confinement. Propietats elèctriques Estructura electrònica Electric properties Electronic structure Nonparabolicity and dielectric effects on addition energy spectra of spherical nanocrystals