Luminescence studies on Pr3+& Yb3+doped cadmium calcium pyrophosphate nanophosphors

Abstract

The Cadmium Calcium Pyrophosphate doped with Pr3+ and Yb3+ was prepared by solution combustion synthesis. The luminescence studies and chromatic properties of the prepared sample were examined in the present study. The luminescence spectra of CdCaP: Pr3+ shows relevant peaks with emission at 599nm upon excitation of 445nm, whereas CdCaP: Yb3+ shows a peak at 536nm when excited with 254nm. The CIE 1931 chromaticity color coordinates for CdCaP: Pr3+ & CdCaP: Yb3+ were located in orange and greenish-yellow regions respectively. CCT and color purity values of the prepared samples were evaluated using McCam empirical formula and respective equation of color purity. Color Rendering Index (CRI) values of the prepared samples were calculated using the color calculator. © 2020 Author(s).