Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9789740 | Physica E: Low-dimensional Systems and Nanostructures | 2005 | 4 Pages |
Abstract
Taking into account the tetrahedral shape of a quantum-dot quantum well (QDQW) when describing excitonic states, phonon modes and the exciton-phonon interaction in the structure, we obtain within a non-adiabatic approach a quantitative interpretation of the photoluminescence (PL) spectrum of a single CdS/HgS/CdS QDQW. We find that the exciton ground state in a tetrahedral QDQW is bright, in contrast to the dark ground state for a spherical QDQW.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
V.A. Fonoberov, E.P. Pokatilov, V.M. Fomin, J.T. Devreese,