Structural and photoluminescent studies of SrAl2O4: Dy3+, Ce3+ phosphors

Hereby, we report the structural and photoluminescent properties of Sr1-xDyx-zCezAl2O4 [x = 0.03, 0.02, 0.01 and z = 0.01. 0.02 and 0.03 respectively] phosphors. The sample synthesis was successfully carried out by solid state reaction route. The crystal structure and the type of phase formed was wi...

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Bibliographic Details
Main Authors: Neema, Riya, Saleem, M., Sharma, P. K., Mittal, M.
Format: Conference Proceeding
Language:English
Subjects:
Cerium
Crystal structure
Crystallization
Crystals
Dysprosium
Fourier transforms
Glow curves
Phosphors
Photoluminescence
Strontium carbonate
X-ray diffraction
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Summary:Hereby, we report the structural and photoluminescent properties of Sr1-xDyx-zCezAl2O4 [x = 0.03, 0.02, 0.01 and z = 0.01. 0.02 and 0.03 respectively] phosphors. The sample synthesis was successfully carried out by solid state reaction route. The crystal structure and the type of phase formed was witnessed by X-ray diffraction characterization where the spectra analysis revealed that the as synthesized samples have crystallized into the monoclinic phase with the assigned space group of P21/n. The samples were observed to have the presence of additional phase corresponding to SrCO3. The XRD results were further confirmed through the Fourier Transform Infra-Red (FTIR) characterization technique where fingerprint absorption peaks confirm the XRD results. Photoluminescent studies revealed the highly intense broad glow curve corresponding to the Ce3+ presence in SrAl2O4 matrix around 390 nm whereas the weak and broad glow curves corresponding to the Dy3+ are observed in the higher region of visible range of electromagnetic spectrum.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5098743