Volume 29 Issue 1
Jan.  2004
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WANG Hong-mei, PANG Ming, ZHANG Ji-hong, WANG Yong-qian, HU Xiao-hua, YANG Ying-guo, YUAN Xi-ming, 2004. Study on Preparation of Rare Earth Metal Long Phosphorescence and Its Properties. Earth Science, 29(1): 50-54.
Citation: WANG Hong-mei, PANG Ming, ZHANG Ji-hong, WANG Yong-qian, HU Xiao-hua, YANG Ying-guo, YUAN Xi-ming, 2004. Study on Preparation of Rare Earth Metal Long Phosphorescence and Its Properties. Earth Science, 29(1): 50-54.

Study on Preparation of Rare Earth Metal Long Phosphorescence and Its Properties

  • Received Date: 2002-06-15
  • Publish Date: 2004-01-25
  • Sol-gel synthesis technique (SST) has been used to prepare SrAl2O4∶Eu2+, Dy3+. The XRD shows that the production prepared at 1 050 ℃ is pure-phase SrAl2O4∶Eu2+, Dy3+, and the phase will not change subjected to the temperature of 1 150 ℃-1 400 ℃. Effects of such factors as the temperature in the sintering process, different proportions of Eu/Sr, different additions of boracic acid, different proportions of Eu/Dy and different proportions of Al/Sr on the relative luminescent height have been studied. The research shows that under the condition of taking hydrogen as reductant, taking 1 200 ℃ as sintering temperature, keeping constant temperature for 2 hours and naturally lowering the temperature, high-quality phosphor products can be produced.

     

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