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

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

doi:10.1016/j.chemphys.2004.08.018

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

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

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

16 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 language	English
Pages (from-to)	109-114
Number of pages	6
Journal	Chemical Physics
Volume	309
Issue number	2-3
DOIs	https://doi.org/10.1016/j.chemphys.2004.08.018
Publication status	Published - 2005 Mar 14

Keywords

Optical absorption
Photoluminescence
Quantum dot

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/j.chemphys.2004.08.018

Cite this

@article{833c3af8f6c84cc09ed16059b7958ed3,

title = "Electron-phonon interaction in absorption and photoluminescence spectra of quantum dots",

abstract = "Optical absorption of quantum dots is investigated using the adiabatic approach, in which a Fr{\"o}hlich-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.",

keywords = "Optical absorption, Photoluminescence, Quantum dot",

author = "Cheche, {T. O.} and Chang, {M. C.} and Lin, {S. H.}",

note = "Funding Information: This work is supported by the National Science Council of Taiwan.",

year = "2005",

month = mar,

day = "14",

doi = "10.1016/j.chemphys.2004.08.018",

language = "English",

volume = "309",

pages = "109--114",

journal = "Chemical Physics",

issn = "0301-0104",

publisher = "Elsevier",

number = "2-3",

}

TY - JOUR

T1 - Electron-phonon interaction in absorption and photoluminescence spectra of quantum dots

AU - Cheche, T. O.

AU - Chang, M. C.

AU - Lin, S. H.

N1 - Funding Information: This work is supported by the National Science Council of Taiwan.

PY - 2005/3/14

Y1 - 2005/3/14

N2 - 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.

AB - 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.

KW - Optical absorption

KW - Photoluminescence

KW - Quantum dot

UR - http://www.scopus.com/inward/record.url?scp=13144254254&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=13144254254&partnerID=8YFLogxK

U2 - 10.1016/j.chemphys.2004.08.018

DO - 10.1016/j.chemphys.2004.08.018

M3 - Article

AN - SCOPUS:13144254254

SN - 0301-0104

VL - 309

SP - 109

EP - 114

JO - Chemical Physics

JF - Chemical Physics

IS - 2-3

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this