Photoluminescence properties of S-doped BaAl_(12)O_(19):Mn~(2+) phosphors for plasma display panels

摘要

The S-doped BaAl_(12)O_(19):Mn~(2+) phosphors were synthesized by an environmentally benign synthesis reaction. Photoluminescence spectra, powder X-ray diffraction, energy dispersion spectrum and decay curves were used to evaluate the S-doped BaAl_(12)O_(19):Mn~(2+) phosphors. It reveals that sulfur doping would lead to a sharp increase of 33.8% in luminance intensity and only a slightly longer decay time. This could be due to the decrease of defects traps and more covalent crystal field surrounding Mn~(2+) when sulfur ions occupied the unstable conduction 0 sites. The result shows that this environmentally benign synthesis is expected to be potentially applicable to the plasma display panels' industrial production of BaAl_(12)O_(19):Mn~(2+) phosphors.