Synthesis and role of co-dopants (alkaline earth divalents and halides) on the photoluminescence of Eu2+ doped BaAl2O4 phosphor
V. Ponnusamy1*, A. Azhagiri1, R. Satheesh Kumar2, M.T. Jose3
1Department of Physics, Anna University, M.I.T Campus, Chennai, Tamil Nadu, 600 044, India.
2Department of Electronic Science and Physics, Jaya College of Arts and Science, Tirunindravur, Chennai, Tamil Nadu, 602 024, India.
3Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, 603 102, India.
Publication Date (Web): Jan 14, 2019
Copyright © 2018 VBRI Press
Pure and Eu2+ doped BaAl2O4 phosphors have been synthesized by simple solid state reaction technique. Synthesized BaAl2O4 samples were studied using powder X-ray diffraction analysis (XRD), Photoluminescence spectroscopy (PL), Fourier Transform - Infra Red Spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM). Alkaline earth divalent (Sr, Ca, Zn, Mg) and halides (F, Cl, Br, I) were used as co-dopants to enhance the PL properties of BaAl2O4:Eu2+ phosphor. Significant impact of ionic radii of co-dopants on PL properties of the phosphor is reported.
BaAl2O4, europium, alkaline earth divalent and halides, photoluminescence.