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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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8952767/ https://www.ncbi.nlm.nih.gov/pubmed/35334735 http://dx.doi.org/10.3390/mi13030443 |
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author | Halim, Nur Diyana Zaini, Muhammad Safwan Talib, Zainal Abidin Liew, Josephine Ying Chyi Kamarudin, Mazliana Ahmad |
author_facet | Halim, Nur Diyana Zaini, Muhammad Safwan Talib, Zainal Abidin Liew, Josephine Ying Chyi Kamarudin, Mazliana Ahmad |
author_sort | Halim, Nur Diyana |
collection | PubMed |
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 | Online Article Text |
id | pubmed-8952767 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89527672022-03-26 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 Kamarudin, Mazliana Ahmad Micromachines (Basel) Article 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. MDPI 2022-03-15 /pmc/articles/PMC8952767/ /pubmed/35334735 http://dx.doi.org/10.3390/mi13030443 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Halim, Nur Diyana Zaini, Muhammad Safwan Talib, Zainal Abidin Liew, Josephine Ying Chyi Kamarudin, Mazliana Ahmad Study of the Electron-Phonon Coupling in PbS/MnTe Quantum Dots Based on Temperature-Dependent Photoluminescence |
title | 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_short | 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 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8952767/ https://www.ncbi.nlm.nih.gov/pubmed/35334735 http://dx.doi.org/10.3390/mi13030443 |
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