Europium-doped yttrium oxide (Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>) nanophosphors were synthesized by wet chemical routes with both combustion and coprecipitation techniques. We explicitly illustrate the dynamics of Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanophosphors with a particle size that is influenced by extrinsic stress and revealed by x rays and Raman scattering. The influence of Eu<sup>3+</sup> activation on Raman spectra is illustrated. We demonstrate the significant enhancement of emission characteristics of ceramics synthesized from nanoparticles by using the combustion technique and by controlling the vacuum-sintering conditions.
© 2004 Optical Society of America
Kai Zhang, A. K. Pradhan, George B. Loutts, Utpal N. Roy, Yunlong Cui, and Arnold Burger, "Enhanced luminescence and size effects of Y2O3:Eu3+ nanoparticles and ceramics revealed by x rays and Raman scattering," J. Opt. Soc. Am. B 21, 1804-1808 (2004)