高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (1): 9.

• 论文 • 上一篇    下一篇

BaMgAl10O17:Eu2+中Eu2+的发光中心

刘应亮1, 李沅英1, 杨燕生1, 石春山2   

  1. 1. 中山大学化学系, 广州 510275;
    2. 中国科学院长春应用化学研究所稀土化学与物理开放实验室, 长春
  • 收稿日期:1993-10-12 修回日期:1994-04-15 出版日期:1995-01-24 发布日期:1995-01-24
  • 通讯作者: 刘应亮,男,33岁,博士研究生.
  • 作者简介:李沉英
  • 基金资助:

    稀土化学与物理开放实验室资助

Luminescent Centres o Eu2+in BaMgAl10O17Phosphor

LIU Ying-Liang1, LI Yuan-Ying1, YANG Yan-Sheng1, SHI Chun-Shan2   

  1. 1. Department of Chemistry, Zhongshan Clniversity, Guangxhou, 510275;
    2. Laboratory of Rare Earth Chemistry and Physics, Changchun Inslitnie of Applied Chemistry, Academia Sinica, Changchun
  • Received:1993-10-12 Revised:1994-04-15 Online:1995-01-24 Published:1995-01-24

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摘要： 研究了助熔剂对BaMgAl10O17基质中Eu2+发光的影响,结果表明,F-离子的存在使Eu2+形成了新的发光中心,在两个发光中心之间产生有效的能量传递。新的发光中心的形成使Eu2+的猝灭浓度提高。

关键词: 多铝酸镁钡, 铕(Ⅱ), 发光中心

Abstract: Influence of flux on luminescence of Eu2+in phosphor BaMgAl10O17 is discussed.The observation of the two kinds of luminescent centres,Eu2+F-and Eu2+(O2-),in the phosphor is reported. There exist Eu2+F-centres in the phosphor due to the substitution of F-ions for O2-ions. Effective energy transfer from Eu2+(F-)to Eu2-(O2-) was observed. The quenched concentration of Eu2+in BaMgAl10O17raised by 0.20 mol/Ldue to new luminescent centre Eu2+F-.

Key words: Barium magnesium polyaluminate, Europium(Ⅱ), Luminescent centres

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