Synthesis and study of trivalent cerium activated Ca2Pb3(PO4)3Cl noval blue emitting phosphor for solid state lighting

Abstract

The PL emission and excitation spectrum of prepared Ca2Pb3(PO4)3Cl:Ce3+ phosphor explained in which excitation at wavelength of 331 nm and it prepared by combustion synthesis method for the emission spectrum exhibits a well defined asymmetric band with maximum at 443 nm emitting a blue light give isolated blue emission at 443 nm for 10 mol %, which has higher PL emission concentrations. The samples were characterized by XRD, SEM, PL and CIE color co-ordinates techniques with relation of emission intensity w.r.to. concentrations of rare earth ion. This process enables quick and energy-efficient generation of well-crystallized particles in fine powder form within a little action. The emission spectra are clearly from the same observable site. No another emission band was observed in emission spectrum indicating that trivalent cerium ion occupies one category of sites in the host material.