Preparation and Emission Spectra of Eu(III) in Nanostructured Γ-Alumina
Spectrochimica acta Part A, Molecular and biomolecular spectroscopy（1998）
Abstract
The preparation of fibrous and spheroidal nanonstructured composites of γ-alumina matrices impregnated with Eu2O3 together with their physico-chemical morphology are described. The emission properties of Eu3+ ion were investigated in both nanocomposites. A more intense emission in the spheroidal nanocomposite than in the fibrous has been found. In addition to the Eu3+ emission two broad emission bands centered at 770 and 500 nm were observed. These latter are inherently associated with porous alumina matrices.
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Key words
Europium emission bands,Fibrous and spherical precursors,Impregnated alumina matrices,Nanostructured composites,Sol–gel technology,
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