BaMgAl 10 O 17:Eu 2+ phosphor powder was synthesized using a sol−gel process. Doping Er 3+ and Nd 3+ in the phosphor can increase the luminescent intensity of the phosphor in the VUV region. The BaMgAl 10 O 17:Eu 2+ phosphor crystallizes completely when the dried gel is calcined at 1300 °C. The BaMgAl 10 O 17:Eu 2+ can absorb the VUV efficiently, and Er 3+ and Nd 3+ ions have great effects on the luminescent properties of BaMgAl 10 O 17:Eu 2+ phosphor by forming positive charged defects. When a suitable amount of Er 3+ or Nd 3+ ion is doped in the phosphor, the excitation intensity in the VUV region especially at about 172 nm increases and the luminescent intensity excited by VUV also increases.
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Zhang et al. (2002) studied this question.