Delocalized electron states in quantum dot molecules

T. Lippen, van, R. Nötzel, A. Silov, J.H. Wolter

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Abstract

We demonstrate 2-dimensional coupling of the electron states in lateral quantum dot molecules by excitation density and temperature dependent micro-photoluminescence (PL) spectroscopy. The 2-dimensional coupling manifests itself in a quasi-continuous density of states due to delocalized electron states. It accounts for broad PL bands observed in excitation density dependent micro-PL and provides low-energy carrier redistribution channels between localized states, as evident from the temperature dependent micro-PL measurements. ©2007 American Institute of Physics
Original languageEnglish
Title of host publication28th Int. Conf. on the Physics of Semiconductors (ICPS 2006) 24-28 July 2006, Vienna, Austria
EditorsW. Jantsch, F. Schaffler
Place of PublicationNew York
PublisherAmerican Institute of Physics
Pages903-904
DOIs
Publication statusPublished - 2007
Event28th International Conference on the Physics of Semiconductors (ICPS 2006), July 24-28, 2006, Vienna, Austria - Vienna, Australia
Duration: 24 Jul 200628 Jul 2006

Publication series

NameAIP Conference Proceedings
Volume893
ISSN (Print)0094-243X

Conference

Conference28th International Conference on the Physics of Semiconductors (ICPS 2006), July 24-28, 2006, Vienna, Austria
Abbreviated titleICPS 2006
CountryAustralia
CityVienna
Period24/07/0628/07/06

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    Lippen, van, T., Nötzel, R., Silov, A., & Wolter, J. H. (2007). Delocalized electron states in quantum dot molecules. In W. Jantsch, & F. Schaffler (Eds.), 28th Int. Conf. on the Physics of Semiconductors (ICPS 2006) 24-28 July 2006, Vienna, Austria (pp. 903-904). (AIP Conference Proceedings; Vol. 893). American Institute of Physics. https://doi.org/10.1063/1.2730184