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Structural and spectroscopical characterization of RE3+(RE = Er, Eu, Tb) doped nanocrystalline YAG produced by a sol-gel method

A.-M. CHINIE1,* , A. STEFAN1, S. GEORGESCU1, O. TOMA1, ELENA BORCA2, M. BERCU2

Affiliation

  1. National Institute for Lasers, Plasma and Radiation Physics, Bucharest-Magurele, Romania
  2. Faculty of Physics, University of Bucharest, Bucharest, Romania

Abstract

Nanocrystaline YAG powders doped with Er3+, Eu3+ or Tb3+ were synthesized through a citrate-nitrate sol-gel process. Thermal treatments were applied at successively increasing temperatures in the interval 600-1400 ºC. The structural transformations were monitored by XRD, FT-IR and optical spectroscopy. A pure garnet phase was observed for annealing temperatures higher than 930 °C..

Keywords

Nanocrystals, YAG, Eu3+, Er3+, Tb3+, Sol-gel method.

Submitted at: Oct. 14, 2005
Accepted at: Jan. 26, 2006

Citation

A.-M. CHINIE, A. STEFAN, S. GEORGESCU, O. TOMA, ELENA BORCA, M. BERCU, Structural and spectroscopical characterization of RE3+(RE = Er, Eu, Tb) doped nanocrystalline YAG produced by a sol-gel method, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 1, pp. 95-98 (2006)