Open Access
Journal of Physics: Conference Series, volume 1537, issue 1, pages 12015
Non-radiative relaxation processes in luminescence of InP/ZnS quantum dots
Publication type: Journal Article
Publication date: 2020-05-01
Quartile SCImago
— Quartile WOS
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Impact factor: —
ISSN: 17426588, 17426596
General Physics and Astronomy
Abstract
Photoluminescence (PL) thermal quenching of InP/ZnS core/shell nanocrystals of 4.2 (QD-1) and 4.6 (QD-2) nm in diameter is investigated in the temperature range of 6.5-296 K. Observed PL spectra are found to originate from exciton and defect-related transitions. Temperature behavior of the emission bands indicates effects of inhomogeneous broadening due to distributions of quantum dots parameters in the ensembles. PL thermal quenching analysis unveils two non-radiative relaxation channels for each band in both samples. Activation energies of 130 and 119 meV in QD-1 and QD-2, correspondingly, for the exciton band can be assigned to the bright-bright splitting of the exciton fine structure.
Top-30
Citations by journals
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1
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Journal of Luminescence
1 publication, 33.33%
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Russian Chemical Bulletin
1 publication, 33.33%
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Russian Chemical Reviews
1 publication, 33.33%
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1
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Citations by publishers
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1
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Elsevier
1 publication, 33.33%
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Springer Nature
1 publication, 33.33%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 33.33%
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1
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- We do not take into account publications without a DOI.
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Savchenko S. S. et al. Non-radiative relaxation processes in luminescence of InP/ZnS quantum dots // Journal of Physics: Conference Series. 2020. Vol. 1537. No. 1. p. 12015.
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Savchenko S. S., Vokhmintsev A. S., Weinstein I. Non-radiative relaxation processes in luminescence of InP/ZnS quantum dots // Journal of Physics: Conference Series. 2020. Vol. 1537. No. 1. p. 12015.
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TY - JOUR
DO - 10.1088/1742-6596/1537/1/012015
UR - https://doi.org/10.1088/1742-6596/1537/1/012015
TI - Non-radiative relaxation processes in luminescence of InP/ZnS quantum dots
T2 - Journal of Physics: Conference Series
AU - Savchenko, Sergey S
AU - Vokhmintsev, A S
AU - Weinstein, I.A.
PY - 2020
DA - 2020/05/01 00:00:00
PB - IOP Publishing
SP - 12015
IS - 1
VL - 1537
SN - 1742-6588
SN - 1742-6596
ER -
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@article{2020_Savchenko,
author = {Sergey S Savchenko and A S Vokhmintsev and I.A. Weinstein},
title = {Non-radiative relaxation processes in luminescence of InP/ZnS quantum dots},
journal = {Journal of Physics: Conference Series},
year = {2020},
volume = {1537},
publisher = {IOP Publishing},
month = {may},
url = {https://doi.org/10.1088/1742-6596/1537/1/012015},
number = {1},
pages = {12015},
doi = {10.1088/1742-6596/1537/1/012015}
}
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Savchenko, Sergey S., et al. “Non-radiative relaxation processes in luminescence of InP/ZnS quantum dots.” Journal of Physics: Conference Series, vol. 1537, no. 1, May. 2020, p. 12015. https://doi.org/10.1088/1742-6596/1537/1/012015.
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