Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence

Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence

The temperature dependence of photoluminescence (PL) emission is a valuable tool for investigating carrier localization, recombination, and carrier–phonon interactions. Herein, electron–phonon couplings in lead sulfide (PbS) quantum dots (QDs) and lead sulfide/manganese tellurite (PbS/MnTe) QDs is r...

Full description

Saved in:
Bibliographic Details
Main Authors: Halim, Nur Diyana, Zaini, Muhammad Safwan, Talib, Zainal Abidin, Liew, Josephine Ying Chyi, Ahmad Kamarudin, Mazliana
Format: Article
Published: Multidisciplinary Digital Publishing Institute 2022
Online Access:http://psasir.upm.edu.my/id/eprint/103342/
https://www.mdpi.com/2072-666X/13/3/443
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Universiti Putra Malaysia
id my.upm.eprints.103342
record_format eprints
spelling my.upm.eprints.1033422023-06-14T03:37:15Z http://psasir.upm.edu.my/id/eprint/103342/ Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence Halim, Nur Diyana Zaini, Muhammad Safwan Talib, Zainal Abidin Liew, Josephine Ying Chyi Ahmad Kamarudin, Mazliana The temperature dependence of photoluminescence (PL) emission is a valuable tool for investigating carrier localization, recombination, and carrier–phonon interactions. Herein, electron–phonon couplings in lead sulfide (PbS) quantum dots (QDs) and lead sulfide/manganese tellurite (PbS/MnTe) QDs is reported. The effect of temperature on the PL emission of PbS and PbS/MnTe was explored within a temperature range of 10 to 300 K. When temperature increased, PL emission was blue-shifted due to the confinement effect. The gradual broadening of the full width at half maximum (FWHM) with increasing temperature indicates electron–phonon interactions. An analysis based on the Boson model revealed that the values of the exciton acoustic phonon coupling coefficient, σ, and temperature-dependent linewidth, γ, for PbS/MnTe were larger than those for PbS, indicating stronger exciton longitudinal-optical–phonon coupling in the compound structure. Multidisciplinary Digital Publishing Institute 2022 Article PeerReviewed Halim, Nur Diyana and Zaini, Muhammad Safwan and Talib, Zainal Abidin and Liew, Josephine Ying Chyi and Ahmad Kamarudin, Mazliana (2022) Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence. Micromachines, 13 (3). art. no. 443. pp. 1-9. ISSN 2072-666X https://www.mdpi.com/2072-666X/13/3/443 10.3390/mi13030443
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description The temperature dependence of photoluminescence (PL) emission is a valuable tool for investigating carrier localization, recombination, and carrier–phonon interactions. Herein, electron–phonon couplings in lead sulfide (PbS) quantum dots (QDs) and lead sulfide/manganese tellurite (PbS/MnTe) QDs is reported. The effect of temperature on the PL emission of PbS and PbS/MnTe was explored within a temperature range of 10 to 300 K. When temperature increased, PL emission was blue-shifted due to the confinement effect. The gradual broadening of the full width at half maximum (FWHM) with increasing temperature indicates electron–phonon interactions. An analysis based on the Boson model revealed that the values of the exciton acoustic phonon coupling coefficient, σ, and temperature-dependent linewidth, γ, for PbS/MnTe were larger than those for PbS, indicating stronger exciton longitudinal-optical–phonon coupling in the compound structure.
format Article
author Halim, Nur Diyana
Zaini, Muhammad Safwan
Talib, Zainal Abidin
Liew, Josephine Ying Chyi
Ahmad Kamarudin, Mazliana
spellingShingle Halim, Nur Diyana
Zaini, Muhammad Safwan
Talib, Zainal Abidin
Liew, Josephine Ying Chyi
Ahmad Kamarudin, Mazliana
Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence
author_facet Halim, Nur Diyana
Zaini, Muhammad Safwan
Talib, Zainal Abidin
Liew, Josephine Ying Chyi
Ahmad Kamarudin, Mazliana
author_sort Halim, Nur Diyana
title Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence
title_short Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence
title_full Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence
title_fullStr Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence
title_full_unstemmed Study of the electron-phonon coupling in PbS/MnTe quantum dots based on temperature-dependent photoluminescence
title_sort study of the electron-phonon coupling in pbs/mnte quantum dots based on temperature-dependent photoluminescence
publisher Multidisciplinary Digital Publishing Institute
publishDate 2022
url http://psasir.upm.edu.my/id/eprint/103342/
https://www.mdpi.com/2072-666X/13/3/443
_version_ 1769844451941810176

Similar Items