Open Access Nano Express

Fine Splitting of Electron States in Silicon Nanocrystal with a Hydrogen-like Shallow Donor

Vladimir A Belyakov* and Vladimir A Burdov

Author Affiliations

Department of Theoretical Physics, University of Nizhniy Novgorod, Nizhniy Novgorod, 603950, Russia

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Nanoscale Research Letters 2007, 2:569-575  doi:10.1007/s11671-007-9101-5

Published: 2 November 2007

Abstract

Electron structure of a silicon quantum dot doped with a shallow hydrogen-like donor has been calculated for the electron states above the optical gap. Within the framework of the envelope-function approach we have calculated the fine splitting of the ground sixfold degenerate electron state as a function of the donor position inside the quantum dot. Also, dependence of the wave functions and energies on the dot size was obtained.

Keywords:
Silicon nanocrystal; Donor; Energy spectrum; Fine splitting