Ce3+-sensisized Na2BaMgP2O8:Mn2+ phosphor: synthesis and photoluminescence properties

Color-tunable phosphors Na2BaMgP2O8:Ce3+, xMn(2+) (NBMP:Ce3+, Mn2+) have been synthesized via traditional solid-state method. X-ray diffraction, Fourier transform infrared spectra, photoluminescence spectroscopy and decay curves are used to characterize the samples. By adjusting the ratio of Ce3+ to Mn2+ in NBMP, red-emitting phosphor can be obtained upon excitation at 279 nm. When monitoring at 608 nm, a broad strong excitation band from 220 to 350 nm is observed. The quantum efficiency of NBMP: 0.05Ce(3+), 0.15Mn(2+) is determined to be 78.9 %. Moreover, chromaticity coordinates of the samples are investigated. The results indicate phosphors NBMP: Ce3+, Mn2+ could have promising performance in display or lighting.