Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots

N. Y. Hwang; S. R. Eric Yang

doi:10.1016/j.ssc.2007.04.028

Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots

N. Y. Hwang, S. R. Eric Yang

Department of Physics

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

Abstract

We have investigated the polarization dependence of the emission spectra of p-shell multiexcitons of a quantum dot when the single particle level spacing is larger than the characteristic energy of the Coulomb interactions. We find that there are many degenerate multiexciton states. The emission intensities depend on the number of degenerate initial and final states of the optical transitions. However, unlike the transition energies, they are essentially independent of the strength of the Coulomb interactions. In the presence of electron-hole symmetry the independence is exact.

Original language	English
Pages (from-to)	176-181
Number of pages	6
Journal	Solid State Communications
Volume	143
Issue number	3
DOIs	https://doi.org/10.1016/j.ssc.2007.04.028
Publication status	Published - 2007 Jul

Keywords

A. Self-assembled quantum dots
D. Polarization dependence
E. Emission spectra of multiexcitons

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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10.1016/j.ssc.2007.04.028

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title = "Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots",

abstract = "We have investigated the polarization dependence of the emission spectra of p-shell multiexcitons of a quantum dot when the single particle level spacing is larger than the characteristic energy of the Coulomb interactions. We find that there are many degenerate multiexciton states. The emission intensities depend on the number of degenerate initial and final states of the optical transitions. However, unlike the transition energies, they are essentially independent of the strength of the Coulomb interactions. In the presence of electron-hole symmetry the independence is exact.",

keywords = "A. Self-assembled quantum dots, D. Polarization dependence, E. Emission spectra of multiexcitons",

author = "Hwang, {N. Y.} and {Eric Yang}, {S. R.}",

note = "Funding Information: This work was supported by grant No. R01-2005-000-10352-0 from the Basic Research Program of the Korea Science and Engineering Foundation, by Quantum Functional Semiconductor Research Center (QSRC) at Dongguk University of the Korea Science and Engineering Foundation and by Pure Basic Research Group project of Korea Research Foundation under Grant No. C00054. This work was supported by The Second Brain 21 Project. ",

year = "2007",

month = jul,

doi = "10.1016/j.ssc.2007.04.028",

language = "English",

volume = "143",

pages = "176--181",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

number = "3",

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TY - JOUR

T1 - Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots

AU - Hwang, N. Y.

AU - Eric Yang, S. R.

N1 - Funding Information: This work was supported by grant No. R01-2005-000-10352-0 from the Basic Research Program of the Korea Science and Engineering Foundation, by Quantum Functional Semiconductor Research Center (QSRC) at Dongguk University of the Korea Science and Engineering Foundation and by Pure Basic Research Group project of Korea Research Foundation under Grant No. C00054. This work was supported by The Second Brain 21 Project.

PY - 2007/7

Y1 - 2007/7

N2 - We have investigated the polarization dependence of the emission spectra of p-shell multiexcitons of a quantum dot when the single particle level spacing is larger than the characteristic energy of the Coulomb interactions. We find that there are many degenerate multiexciton states. The emission intensities depend on the number of degenerate initial and final states of the optical transitions. However, unlike the transition energies, they are essentially independent of the strength of the Coulomb interactions. In the presence of electron-hole symmetry the independence is exact.

AB - We have investigated the polarization dependence of the emission spectra of p-shell multiexcitons of a quantum dot when the single particle level spacing is larger than the characteristic energy of the Coulomb interactions. We find that there are many degenerate multiexciton states. The emission intensities depend on the number of degenerate initial and final states of the optical transitions. However, unlike the transition energies, they are essentially independent of the strength of the Coulomb interactions. In the presence of electron-hole symmetry the independence is exact.

KW - A. Self-assembled quantum dots

KW - D. Polarization dependence

KW - E. Emission spectra of multiexcitons

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U2 - 10.1016/j.ssc.2007.04.028

DO - 10.1016/j.ssc.2007.04.028

M3 - Article

AN - SCOPUS:34249889904

SN - 0038-1098

VL - 143

SP - 176

EP - 181

JO - Solid State Communications

JF - Solid State Communications

IS - 3

ER -

Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots

Abstract

Keywords

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