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Proceedings Paper

Persistent luminescence features in hexagonal Sr0.75Al1.5Si0.5O4:Eu2+ phosphor
Author(s): V. Castaing; C. Monteiro; A. J. Fernández-Carrión; M. Allix; B. Viana
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Paper Abstract

Rare earth doped aluminates, such as SrAl2O4:Eu2+,Dy3+ and CaAl2O4:Eu2+,Nd3+ , are among the best known materials for persistent luminescence or afterglow emission. Their Eu2+ counterparts, which were beforehand finely studied, also exhibit long lasting luminescence properties. It recently appeared that the hexagonal polymorph of SrAl2O4, which is not stable at room temperature, could have promising luminescent properties. A recently efficient way to elaborate the hexagonal Sr1-x/2Al1-xSixO4:Eu2+, with interesting photoluminescence properties, has been developed by full glass crystallization. Still, the persistent luminescence properties of this strontium aluminosilicate compound have never been reported. Here, advanced optical properties such as persistent luminescence emission, persistent luminescence decay and thermoluminescence have been performed in order to report about the persistent luminescence potential of the strontium aluminosilicate hexagonal polymorph.

Paper Details

Date Published: 3 March 2020
PDF: 7 pages
Proc. SPIE 11276, Optical Components and Materials XVII, 112761O (3 March 2020); doi: 10.1117/12.2548120
Show Author Affiliations
V. Castaing, PSL Research Univ., Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris (France)
C. Monteiro, CNRS, CEMHTI, Univ. d'Orléans (France)
A. J. Fernández-Carrión, Guilin Univ. of Technology (China)
M. Allix, CNRS, CEMHTI, Univ. d'Orléans (France)
B. Viana, PSL Research Univ., Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris (France)

Published in SPIE Proceedings Vol. 11276:
Optical Components and Materials XVII
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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