Enhancing the luminescent properites of Zn2P2O7: Ce3+, Dy3+ via efficient energy transfer

Abstract The luminescent property of the Zn 2 P 2 O 7 : Dy 3+ was improved by co-doping Ce 3+ ion into phosphor. The photoluminescence intensity of Dy 3+ was remarkably enhanced by co-doping Ce 3+ . The enhance of emission intensity of Dy 3+ was proposed to be the energy transfer process between Ce 3+ and Dy 3+ which dominated by the electric dipole–dipole interaction, and the energy transfer efficiency is about 90%. The novel phosphors have excellent thermal stability and the emission intensity at 473 K only decreased by 9% than that at room temperature. Furthermore, the CIE 1931 chromaticity coordinates of Zn 2 P 2 O 7 : Ce 3+ , Dy 3+ were adjacent to the ideal white light coordinates, which points to its high potential for white light emitting.