Synthesis, Characterization and Photoluminescence study of Sr2CeO4:Eu3+ phosphor | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Synthesis, Characterization and Photoluminescence study of Sr2CeO4:Eu3+ phosphor

Author(s): Ch. Atchyutha Rao, K. Suresh, K. V. R. Murthy and N. V. Poornachandra Rao

Photoluminescence studies of undoped Sr2CeO4 phosphor and Eu rare earth ion doped Sr2CeO4 phosphor with different concentrations are reported in the present paper. All the samples were prepared through standard solid state reaction method. Analytical grade inorganic salts like Sr(NO3)2, CeO2 and Eu2O3 were used as raw materials of assay 99.9%. All the required chemicals were weighed in molar ratio 2:1 and thoroughly mixed in agate mortar and pestle. The final mixture was heated at 1200 ºC for 3 hour in a muffle furnace with heating rate of 5oC/min. The XRD study reveals the formation of the material mostly in single phase and also particle size was measured by using laser based system. The Commission International de l’Eclairage coordinates of undoped Sr2CeO4 is x = 0:158 and y= 0:192, and Eu doped Sr2CeO4 (0.1%, 0.5%, 1%) are x = 0.174 and y = 0.143, x = 0.26 and y = 0.28, x=0.425 and y=0.241. The PL was recorded with 250nm excitation and the PL emission was observed at 470 for pure specimen, when the excitation is changed to 260nm the emission did not change but the intensity is increased by 40%. From this study it can be inferred the solid state reaction method is adequate for synthesis of Sr2CeO4 nano crystallite phosphors. This phosphor can be useful for many display applications.


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