Influence of quasibound states on the carrier capture in quantum dots

Ingibjörg Magnúsdóttir, A.V. Uskov, R. Ferreira, G. Bastard, Jesper Mørk, Bjarne Tromborg

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Abstract

The interaction of carriers in quantum-dot quasibound states with longitudinal optical phonons is investigated. For a level separation between the quasibound state and a discrete quantum-dot state in the vicinity of the phonon energy, a strong electron-phonon coupling occurs. A mixed electron-phonon mode-polaron-is formed. The finite lifetime of the phonons is shown to give rise to another type of carrier capture into quantum dots.
Original languageEnglish
JournalApplied Physics Letters
Volume81
Issue number23
Pages (from-to)4318-4320
ISSN0003-6951
DOIs
Publication statusPublished - 2002

Bibliographical note

Copyright (2002) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

  • RELAXATION
  • WELLS

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