%0 Journal Article %T Synthesis, Structural and Photophysical Properties of Gd2O3:Eu3+ Nanostructures Prepared by a Microwave Sintering Process %A Ana P. de Moura %A Larissa H. Oliveira %A Icamira C. Nogueira %A Paula F. S. Pereira %A Maximo S. Li %A Elson Longo %A José A. Varela %A Ieda L. V. Rosa %J Advances in Chemical Engineering and Science %P 374-388 %@ 2160-0406 %D 2014 %I Scientific Research Publishing %R 10.4236/aces.2014.43041 %X In this paper, we report the obtention of gadolinium oxide doped with europium (Gd₂O₃:Eu⁺³) by thermal decomposition of the Gd(OH)₃:Eu³⁺ precursor prepared by the microwave assisted hydrothermal method. These systems were analyzed by thermalgravimetric analyses (TGA/DTA), X-ray diffraction (XRD), structural Rietveld refinement method, fourrier transmission infrared absorbance spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM) and photoluminescence (PL) measurement. XRD patterns, Rietveld refinement analysis and FT-IR confirmed that the Gd(OH)₃:Eu³⁺ precursor crystallize in a hexagonal structure and space group P6/m, while the Gd₂O₃