DOIONLINE 
DOIONLINE Publish In |
International Journal of Advances in Science, Engineering and Technology(IJASEAT)-IJASEAT |
 Journal Home Volume Issue |
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Issue |
Special Issue-1 ( Jun, 2015 ) | |||||||||
Paper Title |
Luminescence Studies Of Rare Earth (Europium) Doped Nano-Crystalline Strontium Aluminate Materials (Sra2o4:Eu2+) | |||||||||
Author Name |
Belekar R. M., Sawadh P. S., Mahadule R. K., Theng P. A. | |||||||||
Affilition |
Arvindbabu Deshmukh Mahavidyalaya, Bharsingi, Distt.-Nagpur, Maharashtra State, India-441305 # Bapurao Deshmukh college of Engineering, Sevagram, Distt.- Wardha, Maharashtra State, India-442 102 $ Tulsiramji Gaikwad - Patil College of Engineering & Technology, Nagpur, Maharashtra State, India-441108 | |||||||||
Pages |
163-166 | |||||||||
Abstract |
In the present work we have prepared nano-crystalline rare earth doped strontium aluminate as Sr1-xEuxAl2O4, (with x = 0.01, 0.02 & 0.03) via sol gel auto combustion technique. The homogeneity, structure as well as UV-excitation and persistent luminescence of the materials was investigated by X- ray powder diffraction, SEM microscopy as well as by steady state luminescence spectroscopy and persistent luminescence decay curves, respectively. The morphology of the materials at high temperatures indicated important aggregation due to sintering. The luminescence decay of the quite narrow Eu2+ band at ca. 525 nm shows the presence of persistent luminescence after UV irradiation. The dopant (Eu2+ ) concentrations affect the crystallinity and luminescence properties of the materials. The present work reports the changes made in the combustion process to achieve the homogenous incorporation of dopants and large-scale production of the nanophosphor in a short interval of time. Keywords: Luminescence, nano-alumina, phosphor | |||||||||
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