Quantification of the resonant energy transfer processes in Er3+/Yb3+ co-doped Ca3Al2Si3O12 glasses
Entity
UAM. Departamento de Física de MaterialesPublisher
ElsevierDate
2022-11-05Citation
10.1016/j.jlumin.2022.119484
Journal of Luminescence 253 (2023): 119484
ISSN
0022-2313 (print); 1872-7883 (online)DOI
10.1016/j.jlumin.2022.119484Project
Gobierno de España. PID2019-110632RB-I00Editor's Version
https://doi.org/10.1016/j.jlumin.2022.119484Subjects
Er /Yb 3+ 3+; Calcium Alumino-Silicate; Concentration Dependence; Energy Transfer; FísicaRights
© 2023 Published by Elsevier B.V.
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Abstract
The resonant cross relaxation processes between Yb3+ and Er3+ ions in calcium alumino-silicate glasses have been quantified under selective Er3+ excitation. The infrared emission spectra, measured under steady state conditions (CW excitation to the 4I9/2 erbium level), have allowed to obtain an experimental relationship linking the transfer (Yb3+ → Er3+) and back transfer (Er3+ → Yb3+) parameters. These measurements combined with the dynamics of the main emitting levels, measured under pulsed excitation to the 2H11/2 erbium level, have allowed the fully quantification of the energy transfer parameters. The obtained values, C25=5.5×10−18cm3s−1 (Yb3+ → Er3+), C52=1.5×10−18cm3s−1 (Er3+ → Yb3+) and C27=7.6×10−18cm3s−1 (up-conversion mechanism, estimated from the Judd-Ofelt analysis previously reported), can be used to predict the temporal evolution of the main luminescent emission bands
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Google Scholar:Cantelar Alcaide, Eugenio Francisco
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Lifante, Ginés
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Grima, Lorena
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Peña, José Ignacio
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Sola, Daniel
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