Ab-initio Characterization of Electronic Properties of PbTe Quantum Dots Embedded in a CdTe Matrix

R. Leitsmann () and F. Bechstedt
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R. Leitsmann: Friedrich-Schiller-Universität Jena, European Theoretical Spectroscopy Facility (ETSF) and Institut für Festkörpertheorie und -optik
F. Bechstedt: Friedrich-Schiller-Universität Jena, European Theoretical Spectroscopy Facility (ETSF) and Institut für Festkörpertheorie und -optik

A chapter in High Performance Computing in Science and Engineering '10, 2011, pp 135-147 from Springer

Abstract: Abstract The electronic properties of embedded PbTe nanocrystals (NCs) are investigated using an ab initio pseudopotential method and a repeated supercell approximation. The occurrence of polar dot matrix interfaces lead to the occurrence of an electrostatic field within the NC region. The consequences of this field on the electronic properties of the dot matrix system will be discussed in detail. The resulting spatial separation of electrons and holes inside the nanocrystal region lead to a quantum confined Stark effect.

Keywords: Electrostatic Potential; Local Density Approximation; Interface Charge; Valence Band Maximum; Energetic Position (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-15748-6_10

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DOI: 10.1007/978-3-642-15748-6_10

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