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Proceedings Paper

Optical and morphologic properties of YVO4:Eu phosphor
Author(s): S. Georgescu; A. M. Voiculescu; E. Cotoi; O. Toma; L. Gheorghe; A. Achim; C. Matei; I. Enculescu; E. Matei; M. Osiac
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Paper Abstract

In this paper we present new results concerning the optical and morphologic properties of YVO4:Eu red nanophosphor prepared by a precipitation method and subsequently annealed in air at various temperatures. We monitored the morphologic changes induced by the thermal treatments using the optical spectroscopy (reflectance and luminescence spectra), XRD and electron microscopy. The annealing leads to an increase of the particle size and improvement of the order of the crystalline lattice of YVO4. The annealing at 800°C produces the sample with the highest luminescence intensity.

Paper Details

Date Published: 17 May 2010
PDF: 6 pages
Proc. SPIE 7469, ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II, 74690C (17 May 2010); doi: 10.1117/12.866769
Show Author Affiliations
S. Georgescu, National Institute for Laser, Plasma and Radiation Physics (Romania)
A. M. Voiculescu, National Institute for Laser, Plasma and Radiation Physics (Romania)
E. Cotoi, National Institute for Laser, Plasma and Radiation Physics (Romania)
O. Toma, National Institute for Laser, Plasma and Radiation Physics (Romania)
L. Gheorghe, National Institute for Laser, Plasma and Radiation Physics (Romania)
A. Achim, National Institute for Laser, Plasma and Radiation Physics (Romania)
C. Matei, National Institute for Laser, Plasma and Radiation Physics (Romania)
I. Enculescu, National Institute for Materials Physics (Romania)
E. Matei, National Institute for Materials Physics (Romania)
M. Osiac, Univ. of Craiova (Romania)


Published in SPIE Proceedings Vol. 7469:
ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II
Valentin I. Vlad, Editor(s)

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