Synthesis, Structural and Luminescent Properties of Gd₂O₃-SiO₂:Eu³⁺ Nanopowder Composites

Abstract:

In view of the improvement of luminescent intensity in classical phosphors, different new techniques of synthesis have been developed. One of them is the sol-gel technique for nanopowder synthesis. Applied to a binary system Gd2O3-SiO2 doped with trivalent europium ion, very fine powder form samples have been obtained. In that case the emission intensity of 5D0→F2 electronic transition of 4f6 configuration is greatly enhanced compared to the bulk oxide. The lifetime measurements are given too. The size of nanoparticles is of about 10 nm, determined by dynamic light scattering and XRD analysis.

• Periodical: Materials Science Forum (Volume 518)
• Pages: 455-458
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.518.455
• Online since: July 2006
• Authors: M.D. Dramićanin, V. Jokanović, Z. Andrić, Bruno Viana, P. Aschehoug, E. Antić-Fidančev
• Keywords: Gd₂SiO₅ Nanostructures, Luminescence, X-Ray Diffraction (XRD)

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