Estimation of Color Purity and Trapping Parameters for Samarium Doped BaTiO$_{3}$ Phosphor

The behavior displayed by photoluminescence and thermoluminescence of BaTiO
₃
phosphor activated by samarium ion reported in the manuscript. Sample was prepared by solid state reaction method with calcination temperature 600
^°
C and sintered at 950
^°
C. The prepared sample was characterized by X-ray diffraction analysis and matched with COD card number using Celref V3 software. Samarium concentration was fixed i.e., 1 and 1.5 mol% for synthesis. Photoluminescence excitation and emission spectra were recorded and intense peak found at yellow region which shows the transition of samarium ion. Spectrophotometric determination was recorded by CIE technique and it shows the color rendering index of prepared phosphor. For Thermoluminescence glow curve analysis sample was irradiated by gamma dose 0.5-2 kGy using Co
⁶⁰
gamma source. It shows intense broad TL glow curve at 185
^°
C with a high temperature shoulder peak at 221
^°
C. It shows a greater number of traps generated in the prepared sample. The associated peak in the broad TL glow curve was separated by the CGCD technique. Kinetic parameters are calculated by the peak shape method using the CGCD technique.