%0 Journal Article %T Synthesis and role of co-dopants (alkaline earth divalents and halides) on the photoluminescence of Eu<sup>2+</sup> doped BaAl<sub>2</sub>O<sub>4</sub> phosphor %J Advanced Materials Letters %I International Association of Advanced Materials %Z 0976-3961 %A Ponnusamy, V. %A Azhagiri, A. %A Satheesh Kumar, R. %A Jose, M.T. %D 2019 %\ 05/01/2019 %V 10 %N 5 %P 341-345 %! Synthesis and role of co-dopants (alkaline earth divalents and halides) on the photoluminescence of Eu<sup>2+</sup> doped BaAl<sub>2</sub>O<sub>4</sub> phosphor %K BaAl2O4 %K europium %K alkaline earth divalent and halides %K photoluminescence %R 10.5185/amlett.2019.2218 %X Pure and Eu 2+ 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:Eu 2+ phosphor. Significant impact of ionic radii of co-dopants on PL properties of the phosphor is reported. %U https://aml.iaamonline.org/article_13851_83a482a64f11d7c2642f557fd70d6c42.pdf