17 May 2010 Optical and morphologic properties of YVO4:Eu phosphor
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Proceedings Volume 7469, ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II; 74690C (2010); doi: 10.1117/12.866769
Event: ROMOPTO 2009, 2009, Sibiu, Romania
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.
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S. Georgescu, A. M. Voiculescu, E. Cotoi, O. Toma, L. Gheorghe, A. Achim, C. Matei, I. Enculescu, E. Matei, M. Osiac, "Optical and morphologic properties of YVO4:Eu phosphor", Proc. SPIE 7469, ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II, 74690C (17 May 2010); doi: 10.1117/12.866769; https://doi.org/10.1117/12.866769
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KEYWORDS
Luminescence

Annealing

Reflectivity

Crystals

Particles

Ions

Absorption

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