Abstract
The S-doped BaAl12O19:Mn2+ 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 BaAl12O19:Mn2+ 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 Mn2+ when sulfur ions occupied the unstable conduction O sites. The result shows that this environmentally benign synthesis is expected to be potentially applicable to the plasma display panels' industrial production of BaAl12O19:Mn2+ phosphors.
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