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Proceedings Paper

Synthesis of europium-activated calcium tungstate phosphor
Author(s): Elisabeth-Jeanne Popovici; Flavia Forgaciu; Miloslava Nemes; Veronica Ursu
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Paper 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.

Paper Details

Date Published: 2 July 1998
PDF: 5 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312768
Show Author Affiliations
Elisabeth-Jeanne Popovici, Institute of Chemistry Raluca Ripan (Romania)
Flavia Forgaciu, Institute of Chemistry Raluca Ripan (Romania)
Miloslava Nemes, Institute of Chemistry Raluca Ripan (Romania)
Veronica Ursu, Institute of Physical Chemistry (Romania)

Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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