STRUCTURAL AND PHOTOLUMINESCENCE CHARACTERIZATION OF MgAl2O4:Eu PHOSPHOR SYNTHESIZED BY COMBUSTION METHOD.

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International Journal of Advanced Reaserch 5 (3):1887-1890 (2017)
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Abstract

The MgAl2O4 spinel doped with Eu2+ ions powder phosphor was prepared at temperature as low as 500 oC using the combustion route. A structural property of the powder was characterized by X-ray diffraction (XRD). This XRD pattern shows the well crystallized cubic phase, Fd-3m space group of MgAl2O4. The estimated average crystalline size is about 36 and 30 nm for MgAl2O4 and Eu doped MgAl2O4 particles respectively. The photoluminescent property of prepared powder was investigated using excitation and emission spectroscopy at room temperatures. Energy levels scheme is proposed for emission from MgAl2O4: Eu2+.

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