Synthesis and luminescence properties of Eu(2+) activated Ca2P2O7 pyrophosphate phosphor

In the present study, calcium pyrophosphate activated with Eu(2+) rare earth ions prepared by solid state diffusion and confirmed by XRD. An average crystallite size is found out to be in sub-micrometer range of 2-5 μm from SEM study. FTIR spectra suggest that Ca2P2O7 material belongs to the diphosphate family. The PL spectroscopic characterizations of the prepared phosphors were performed using excitation and emission spectra. Photoluminescence spectra of Ca2P2O7:Eu(2+) pyrophosphate phosphor shows emission at 426 nm when excited at 356 nm.