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Proceedings Paper

Photo- and cathodoluminescence investigation of CaWo4:Eu,Tb phosphors
Author(s): Elisabeth-Jeanne Popovici; Mihail Nazarov; Duk Young Jeon; Laura Muresan; Tania A. Nazarova; Emil Indrea; Amalia Hristea-Simoc
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Paper Abstract

Rare earth activated phosphors are largely used in optoelectronic devices, X-ray intensifying screens and fluorescent lamps. Luminescent properties (color, efficiency, and decay parameters) and powder characteristics (particle morphology and size, crystalline structure) that are regulated during the synthesis process determine the phosphor utilization potential. Photoluminescence (PL) and cathodoluminescence (CL) investigations are used in order to evaluate the quality of phosphor based on europium and terbium activated calcium tungstate. CL and PL spectra as well as CCL-SEM pictures of some CaWO4: Eu,Tb samples are discussed in relation with some of their preparation parameters. The mutual interaction of the two activating ions is put in evidence.

Paper Details

Date Published: 21 October 2004
PDF: 8 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.583062
Show Author Affiliations
Elisabeth-Jeanne Popovici, Raluca Ripan Institute of Chemistry (Romania)
Mihail Nazarov, Korea Advanced Institute of Science and Technology (South Korea)
Duk Young Jeon, Korea Advanced Institute of Science and Technology (South Korea)
Laura Muresan, Raluca Ripan Institute of Chemistry (Romania)
Tania A. Nazarova, Ctr. of Advanced Physical Research (Moldova)
Emil Indrea, National Institute for Research and Development of Isotopic and Molecular Technologies (Romania)
Amalia Hristea-Simoc, Raluca Ripan Institute of Chemistry (Romania)

Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics
Valentin I. Vlad, Editor(s)

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