Electronic Structure of Quantum-Dot Molecules and Solids

Published

March 1, 2002

Author(s)

G C. Bryant, W Jaskolski

Abstract

We present an empirical tight-binding theory of nanocrystal nanosystems. We use our tight-binding theory to understand the electronic states of quantum-dot solids, the coupling between nanocrystals, and the hybridization of states in coupled structures. We consider coupled double-dot molecules. Results for epitaxial connections, with the dots lattice-matched across the interdot interface, show significant coupling when the connection is through more than a few atoms. The coupling strength depends on the spatial distribution and symmetry of the states involved, as in molecular hybridization.

Citation

Physica E: Low Dimensional Systems and Nanostructures

Volume

13

Issue

No. 2-4

Pub Type

Journals

Keywords

electronic structure, nanocrystals, optical spectra, quantum dots, tight-binding theory

Citation

Bryant, G. and Jaskolski, W. (2002), Electronic Structure of Quantum-Dot Molecules and Solids, Physica E: Low Dimensional Systems and Nanostructures (Accessed April 20, 2024)