Journal of Luminescence, volume 128, issue 7, pages 1132-1136
Phonon coupling of non-bridging oxygen hole center with the silica environment: Temperature dependence of the 1.9eV emission spectra
Publication type: Journal Article
Publication date: 2008-07-01
Journal:
Journal of Luminescence
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 3.6
ISSN: 00222313
General Chemistry
Biochemistry
Biophysics
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
We report an experimental study on the shape of the 1.9 eV emission associated with non-bridging oxygen hole centers in silica and its temperature dependence, from 4 up to 300 K, under visible and ultraviolet excitation. Our analysis points out that these defects are coupled with their environment by phonons whose contribution can be described by the single mode of mean frequency between 300–400 cm −1 and Huang–Rhys factor of ∼3. On increasing the temperature, the luminescence intensity undergoes a thermal quenching caused by non-radiative processes, its deviation from a pure Arrhenius law can be accounted for by an uniform distribution of activation energy, from 0.002 to 0.05 eV. Meanwhile the emission band gets narrower, this contrasts with the broadening with temperature observed in other silica defects and suggests that the vibrational levels associated with the excited state are not thermally populated according to Boltzmann's law.
Top-30
Citations by journals
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2 publications, 10%
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1 publication, 5%
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1 publication, 5%
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1 publication, 5%
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1 publication, 5%
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1 publication, 5%
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1 publication, 5%
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1 publication, 5%
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1 publication, 5%
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1 publication, 5%
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Russian Chemical Reviews
1 publication, 5%
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1 publication, 5%
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3
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Citations by publishers
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5
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Elsevier
5 publications, 25%
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Optical Society of America
5 publications, 25%
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American Institute of Physics (AIP)
2 publications, 10%
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American Physical Society (APS)
1 publication, 5%
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Multidisciplinary Digital Publishing Institute (MDPI)
1 publication, 5%
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Springer Nature
1 publication, 5%
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IOP Publishing
1 publication, 5%
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Pleiades Publishing
1 publication, 5%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 5%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Vaccaro L., Cannas M., Boscaino R. Phonon coupling of non-bridging oxygen hole center with the silica environment: Temperature dependence of the 1.9eV emission spectra // Journal of Luminescence. 2008. Vol. 128. No. 7. pp. 1132-1136.
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Vaccaro L., Cannas M., Boscaino R. Phonon coupling of non-bridging oxygen hole center with the silica environment: Temperature dependence of the 1.9eV emission spectra // Journal of Luminescence. 2008. Vol. 128. No. 7. pp. 1132-1136.
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TY - JOUR
DO - 10.1016/j.jlumin.2007.11.076
UR - https://doi.org/10.1016/j.jlumin.2007.11.076
TI - Phonon coupling of non-bridging oxygen hole center with the silica environment: Temperature dependence of the 1.9eV emission spectra
T2 - Journal of Luminescence
AU - Vaccaro, L.
AU - Cannas, Marco
AU - Boscaino, R.
PY - 2008
DA - 2008/07/01 00:00:00
PB - Elsevier
SP - 1132-1136
IS - 7
VL - 128
SN - 0022-2313
ER -
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@article{2008_Vaccaro,
author = {L. Vaccaro and Marco Cannas and R. Boscaino},
title = {Phonon coupling of non-bridging oxygen hole center with the silica environment: Temperature dependence of the 1.9eV emission spectra},
journal = {Journal of Luminescence},
year = {2008},
volume = {128},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016/j.jlumin.2007.11.076},
number = {7},
pages = {1132--1136},
doi = {10.1016/j.jlumin.2007.11.076}
}
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MLA
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Vaccaro, L., et al. “Phonon coupling of non-bridging oxygen hole center with the silica environment: Temperature dependence of the 1.9eV emission spectra.” Journal of Luminescence, vol. 128, no. 7, Jul. 2008, pp. 1132-1136. https://doi.org/10.1016/j.jlumin.2007.11.076.