Persistent luminescence features in hexagonal Sr0.75Al1.5Si0.5O4:Eu2+ phosphor

V. Castaing; C. Monteiro; A. J. Fernández-Carrión; M. Allix; B. Viana

doi:10.1117/12.2548120

3 March 2020 Persistent luminescence features in hexagonal Sr_0.75Al_1.5Si_0.5O₄:Eu²⁺ phosphor

V. Castaing, C. Monteiro, A. J. Fernández-Carrión, M. Allix, B. Viana

Proceedings Volume 11276, Optical Components and Materials XVII; 112761O (2020) https://doi.org/10.1117/12.2548120
Event: SPIE OPTO, 2020, San Francisco, California, United States

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 Sr_1-x/2Al_1-xSi_xO₄: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.

Citation Download Citation

V. Castaing, C. Monteiro, A. J. Fernández-Carrión, M. Allix, and B. Viana "Persistent luminescence features in hexagonal Sr_0.75Al_1.5Si_0.5O₄:Eu²⁺ phosphor", Proc. SPIE 11276, Optical Components and Materials XVII, 112761O (3 March 2020); https://doi.org/10.1117/12.2548120

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