Preparation of Y 3Al 5O 12:Sm powders by microwave-induced combustion process and their luminescent properties

A novel ceramic synthesis technique, microwave-induced combustion process was investigated for the production of Y 3Al 5O 12:Sm powders with improved physical and luminescence properties. This technique involves the reaction of aluminum nitrate (Al(NO 3) 3·9H 2O), yttrium nitrate (Y(NO 3) 3·6H 2O),...

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Bibliographic Details
Published inJournal of alloys and compounds Vol. 419; no. 1; pp. 197 - 200
Main Authors Tsao, Shen, Fu, Yen-Pei, Hu, Chen-Ti
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2006
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Summary:A novel ceramic synthesis technique, microwave-induced combustion process was investigated for the production of Y 3Al 5O 12:Sm powders with improved physical and luminescence properties. This technique involves the reaction of aluminum nitrate (Al(NO 3) 3·9H 2O), yttrium nitrate (Y(NO 3) 3·6H 2O), samarium nitrate (Sm(NO 3) 3·6H 2O), and carbohydrazide (CO(N 2H 3) 2) at microwave-oven and the whole process took only 30 min. The powders of Y 3Al 5O 12:Sm were further investigated by X-ray diffractometer (XRD), scanning electron microscope (SEM), infrared spectroscopy (IR), and photoluminescence emission spectra (PL). The results showed that the formation temperature of YAG phase is significantly low, compared to solid-state reaction route of constituent oxides. For luminescence property, the emission intensity of YAG doped with 3 mol% Sm synthesized by microwave-induced combustion reaches the maximum emission intensity.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2005.08.071