Plasma-related phonon-sideband emission in semiconductors

Alexej Chernikov, Christoph N. Böttge, Thomas Feldtmann, Sangam Chatterjee, Martin Koch, Mackillo Kira, Stephan W Koch

Research output: Contribution to journalArticle

Abstract

The phonon-assisted recombination in bulk II-VI semi-conductors is analyzed by means of time-resolved photoluminescence spectroscopy. Experimental results on both CdS and CdSe clearly indicate that phonon-sideband emission is not exclusively attributed to the presence of excitons. The contributions of Coulombcorrelated electron-hole plasma to the phonon assisted recombination may be significant, depending on the excitation conditions. This observation is supported by a microscopic many-particle theory of interacting electrons, phonons, and photons. Our theoretical approach generalizes previous investigations by including both correlated and uncorrelated luminescence sources. Our findings contradict and expand the traditional picture of phonon-sideband emission.

Original languageEnglish (US)
Pages (from-to)1129-1132
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume8
Issue number4
DOIs
StatePublished - Apr 2011
Externally publishedYes

Fingerprint

sidebands
many body problem
phonons
conductors
excitons
luminescence
photoluminescence
photons
spectroscopy
excitation
electrons

Keywords

  • Electron-hole plasma
  • Excitons
  • Phonon sidebands
  • Semiconductors

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Plasma-related phonon-sideband emission in semiconductors. / Chernikov, Alexej; Böttge, Christoph N.; Feldtmann, Thomas; Chatterjee, Sangam; Koch, Martin; Kira, Mackillo; Koch, Stephan W.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 8, No. 4, 04.2011, p. 1129-1132.

Research output: Contribution to journalArticle

Chernikov, A, Böttge, CN, Feldtmann, T, Chatterjee, S, Koch, M, Kira, M & Koch, SW 2011, 'Plasma-related phonon-sideband emission in semiconductors', Physica Status Solidi (C) Current Topics in Solid State Physics, vol. 8, no. 4, pp. 1129-1132. https://doi.org/10.1002/pssc.201000841
Chernikov, Alexej ; Böttge, Christoph N. ; Feldtmann, Thomas ; Chatterjee, Sangam ; Koch, Martin ; Kira, Mackillo ; Koch, Stephan W. / Plasma-related phonon-sideband emission in semiconductors. In: Physica Status Solidi (C) Current Topics in Solid State Physics. 2011 ; Vol. 8, No. 4. pp. 1129-1132.
@article{87e543cd253b4ba08f8356728cd292b9,
title = "Plasma-related phonon-sideband emission in semiconductors",
abstract = "The phonon-assisted recombination in bulk II-VI semi-conductors is analyzed by means of time-resolved photoluminescence spectroscopy. Experimental results on both CdS and CdSe clearly indicate that phonon-sideband emission is not exclusively attributed to the presence of excitons. The contributions of Coulombcorrelated electron-hole plasma to the phonon assisted recombination may be significant, depending on the excitation conditions. This observation is supported by a microscopic many-particle theory of interacting electrons, phonons, and photons. Our theoretical approach generalizes previous investigations by including both correlated and uncorrelated luminescence sources. Our findings contradict and expand the traditional picture of phonon-sideband emission.",
keywords = "Electron-hole plasma, Excitons, Phonon sidebands, Semiconductors",
author = "Alexej Chernikov and B{\"o}ttge, {Christoph N.} and Thomas Feldtmann and Sangam Chatterjee and Martin Koch and Mackillo Kira and Koch, {Stephan W}",
year = "2011",
month = "4",
doi = "10.1002/pssc.201000841",
language = "English (US)",
volume = "8",
pages = "1129--1132",
journal = "Physica Status Solidi (C) Current Topics in Solid State Physics",
issn = "1862-6351",
publisher = "Wiley-VCH Verlag",
number = "4",

}

TY - JOUR

T1 - Plasma-related phonon-sideband emission in semiconductors

AU - Chernikov, Alexej

AU - Böttge, Christoph N.

AU - Feldtmann, Thomas

AU - Chatterjee, Sangam

AU - Koch, Martin

AU - Kira, Mackillo

AU - Koch, Stephan W

PY - 2011/4

Y1 - 2011/4

N2 - The phonon-assisted recombination in bulk II-VI semi-conductors is analyzed by means of time-resolved photoluminescence spectroscopy. Experimental results on both CdS and CdSe clearly indicate that phonon-sideband emission is not exclusively attributed to the presence of excitons. The contributions of Coulombcorrelated electron-hole plasma to the phonon assisted recombination may be significant, depending on the excitation conditions. This observation is supported by a microscopic many-particle theory of interacting electrons, phonons, and photons. Our theoretical approach generalizes previous investigations by including both correlated and uncorrelated luminescence sources. Our findings contradict and expand the traditional picture of phonon-sideband emission.

AB - The phonon-assisted recombination in bulk II-VI semi-conductors is analyzed by means of time-resolved photoluminescence spectroscopy. Experimental results on both CdS and CdSe clearly indicate that phonon-sideband emission is not exclusively attributed to the presence of excitons. The contributions of Coulombcorrelated electron-hole plasma to the phonon assisted recombination may be significant, depending on the excitation conditions. This observation is supported by a microscopic many-particle theory of interacting electrons, phonons, and photons. Our theoretical approach generalizes previous investigations by including both correlated and uncorrelated luminescence sources. Our findings contradict and expand the traditional picture of phonon-sideband emission.

KW - Electron-hole plasma

KW - Excitons

KW - Phonon sidebands

KW - Semiconductors

UR - http://www.scopus.com/inward/record.url?scp=79953750072&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79953750072&partnerID=8YFLogxK

U2 - 10.1002/pssc.201000841

DO - 10.1002/pssc.201000841

M3 - Article

AN - SCOPUS:79953750072

VL - 8

SP - 1129

EP - 1132

JO - Physica Status Solidi (C) Current Topics in Solid State Physics

JF - Physica Status Solidi (C) Current Topics in Solid State Physics

SN - 1862-6351

IS - 4

ER -