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...
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| Format: | Article |
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Multidisciplinary Digital Publishing Institute
2022
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| author | Halim, Nur Diyana Zaini, Muhammad Safwan Talib, Zainal Abidin Liew, Josephine Ying Chyi Ahmad Kamarudin, Mazliana |
| author_facet | Halim, Nur Diyana Zaini, Muhammad Safwan Talib, Zainal Abidin Liew, Josephine Ying Chyi Ahmad Kamarudin, Mazliana |
| author_sort | Halim, Nur Diyana |
| collection | UPM |
| 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. |
| first_indexed | 2024-03-06T11:18:14Z |
| format | Article |
| id | upm.eprints-103342 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T11:18:14Z |
| publishDate | 2022 |
| publisher | Multidisciplinary Digital Publishing Institute |
| record_format | dspace |
| spelling | 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 |
| 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 |
| 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 |
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