Abstract
BaMgAl 10O 17:Eu 2+ doped with 0–6% additional Mg 2+ were synthesized by co-precipitation method. Their photoluminescence and thermal stability were investigated under ultraviolet (UV) and vacuum ultraviolet (VUV) excitation. The additional Mg 2+-doped samples exhibited stronger emission intensity and better thermal stability than the sample without additional Mg 2+ under 254 or 147 nm excitation. After thermal degradation, the 4% additional Mg 2+-doped sample had the highest emission intensity which was 12.7% and 16.6% stronger than that of the sample without additional Mg 2+ under 254 and 147 nm excitation, respectively. Moreover, the improvement mechanisms on emission intensity and thermal stability were discussed.
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