Charged excitons in modulation-doped quantum wires

  • T. Otterburg
  • , D. Y. Oberli
  • , M. A. Dupertuis
  • , N. Moret
  • , A. Malko
  • , E. Pelucchi
  • , B. Dwir
  • , E. Kapon

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

We report on the observation of negatively- and positively-charged excitons in the photoluminescence spectra of V-groove quantum wires. The charged exciton binding energy increases with the strength of the quantum confinement. We demonstrate that fluctuations of the confinement potential cause the localization of the exciton and of the charged exitons on the same location. We discover that a large fraction of the enhancement of the charged exciton "binding energies" has a kinetic origin associated with the recoil energy transferred to the remaining carrier during the emission process.

Original languageEnglish
Title of host publicationPHYSICS OF SEMICONDUCTORS
Subtitle of host publication27th International Conference on the Physics of Semiconductors, ICPS-27
Pages869-870
Number of pages2
DOIs
Publication statusPublished - 30 Jun 2005
Externally publishedYes
EventPHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 - Flagstaff, AZ, United States
Duration: 26 Jul 200430 Jul 2004

Publication series

NameAIP Conference Proceedings
Volume772
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferencePHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27
Country/TerritoryUnited States
CityFlagstaff, AZ
Period26/07/0430/07/04

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