Synthesis of europium-activated calcium tungstate phosphor

Elisabeth-Jeanne Popovici; Flavia Forgaciu; Miloslava Nemes; Veronica Ursu

doi:10.1117/12.312768

2 July 1998 Synthesis of europium-activated calcium tungstate phosphor

Elisabeth-Jeanne Popovici, Flavia Forgaciu, Miloslava Nemes, Veronica Ursu

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312768
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

The purpose of this study is to establish the way in which different synthesis conditions influence on the structural and luminescent characteristics of europium activated calcium tungstate powder phosphor. CaWO₄:Eu³⁺ samples were prepared by thermal synthesis from mixtures consisting of precipitated-CaWO₄, equivalent amounts of Eu₂O₃ and WO₃ (activating system) and CaCl₂ or Na₂WO₄ as flux. Calcination was performed at 800 - 1000 degree(s)C for 2 h, in air. The crystalline structure (XRD-patterns) and luminescent characteristics (emission and excitation spectra of phosphor samples were determined and interpreted.

Citation Download Citation

Elisabeth-Jeanne Popovici, Flavia Forgaciu, Miloslava Nemes, and Veronica Ursu "Synthesis of europium-activated calcium tungstate phosphor", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312768

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