Luminescent Properties of Tb3+:Y3Al5O12 – Coated Submicron SiO2 Particles

Piotr Psuja 1,  Paweł Głuchowski 1,  Dariusz Hreniak 1,  Łukasz Marciniak 2,  Magdalena Pietrzak 2,  Wiesław Stręk 1

1. Polish Academy of Sciences, Institute of Low Temperature and Structure Research (INTiBS), Okólna 2, Wrocław 50-422, Poland
2. Wrocław University of Technology, Wybrzeże Wyspiańskiego, Wrocław 50-370, Poland

Abstract

The SiO2 submicron particles coated with an yttrium aluminum garnet (Y3Al5O12, YAG) layer doped with Tb3+ were prepared by the sol-gel method. The morphology and structure of samples determined by the X-ray powder diffraction (XRD) measurements and transmission electron microscope (TEM) images, respectively, indicated that well-crystallized nanocrystallites were form the evolution of luminescence properties. The effect of coating was analyzed by comparing properties of the Tb3+:Y3Al5O12 nanocrystalline powders and composite Tb3+:Y3Al5O12/SiO2 materials. A possible applications of obtained structures is discussed in this work.

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Presentation: Poster at E-MRS Fall Meeting 2007, Symposium A, by Paweł Głuchowski
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-05-21 15:05
Revised:   2007-05-21 15:05
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