Electron-phonon interaction in absorption and photoluminescence spectra of quantum dots

T. O. Cheche, M. C. Chang, S. H. Lin

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Optical absorption of quantum dots is investigated using the adiabatic approach, in which a Fröhlich-type interaction between electron-hole pair and longitudinal optical phonons has been assumed. The role of the finite barrier potentials in predicting the magnitude of the Huang-Rhys factors is considered. For the small GaAs/AlAs quantum dots, the Huang-Rhys factors are found to be larger than those in the bulk phase by one to two orders of magnitude. The absorption and photoluminescence spectra of such nanostructures are analyzed.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalChemical Physics
Volume309
Issue number2-3
DOIs
Publication statusPublished - 2005 Mar 14

Keywords

  • Optical absorption
  • Photoluminescence
  • Quantum dot

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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