Electroluminescence spectra of an STM-tip-induced quantum dot

M.D. Croitoru, V.N. Gladilin, V. Fomin, J.T. Devreese, M. Kemerink, P.M. Koenraad, K. Sauthoff, J.H. Wolter

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

4 Citations (Scopus)

Abstract

We analyse the electroluminescence measurements performed on a STM-tipImduced quantum dot in a GaAs layer. Positions of electroluminescence peaks, attributed to the electron-hole recombination in the quantum dot, are very sensitive to the electron tunnelling current even in the case when the current is weak and the effect of the electron charge on the electrostatic potential profile in the structure is negligible. We find, in agreement with experiment, that increasing voltage on the STM-tip results in a red shift of thel electroluminescence peaks, while the peak positions as a function of the electron tunnelling current reveal a blue shift.
Original languageEnglish
Title of host publicationPhysics of semiconductors 2002 : proceedings of the 26th International Conference on the Physics of Semiconductors held in Edinburgh, UK, 29 July - 2 August 2002
EditorsA.R. Long, J.H. Davies
Place of PublicationBristol
PublisherInstitute of Physics
PagesD170-1/8
ISBN (Print)0-7503-0924-5
Publication statusPublished - 2003
Eventconference; 26th International Conference on the Physics of Semiconductors -
Duration: 1 Jan 2003 → …

Publication series

NameInstitute of Physics Conference Series
Volume171
ISSN (Print)0951-3248

Conference

Conferenceconference; 26th International Conference on the Physics of Semiconductors
Period1/01/03 → …
Other26th International Conference on the Physics of Semiconductors

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