高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (9): 1425.

• 论文 • 上一篇    下一篇

在空气中合成MBPO5:Eu2+和MBPO5:Yb2+(M=Ca,Sr,Ba)荧光体

荆海强1, 吴国庆1, 杜宝石2   

  1. 1. 北京师范大学化学系, 北京 100875;
    2. 郑州大学化学系, 郑州 450052
  • 收稿日期:1996-07-23 出版日期:1997-09-24 发布日期:1997-09-24
  • 通讯作者: 吴国庆.
  • 作者简介:荆海强, 男, 28岁, 硕士, 现在河南商品检验局工作.

Preparation of Phosphors MBPO5: Eu2+ and MBPO5: Yb2+ in Air

JING Hai-Qiang1, WU Guo-Qing1, DU Bao-Shi2   

  1. 1. Dept. of Chem., Beijing Normal Univ., Beijing 100875;
    2. Dept. of Chem., Zhengzhou Univ., Zhengzhou 450052
  • Received:1996-07-23 Online:1997-09-24 Published:1997-09-24

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摘要： 以含RE2O3(RE=Eu, Yb)为起始物, 在空气中成功地合成了MBPO5:RE(2+)(M=Ca, Sr, Ba;RE(2+)=Eu(2+), Yb(2+))荧光体, 测定了它们的激发和发射光谱峰位以及发射半高宽.

关键词: 碱土硼磷酸盐, 铕, 镱, 发光体, 荧光

Abstract: MBPO5: RE2+ (M = Ca, Sr, Ba; RE= Eu, Yb) were synthesized with RE2O3,H3BO3, (NH4)2HPO4 and MCO3 as the starting materials in air, instead of preparing them inH2/N2 atmosphere. The peaks in their excitation and emission fluorescence spectra as well ashalf-widths of emission were measured. The results show that it is possible to preparedivalent Eu and Yb ions activated phosphors in air, if the crystal structure of the matrix enablesthese divalent ions to be stable in the light of its geometric factors and if the matrix itselfenables reducing trivalent Eu and Yb to be divalent.

Key words: Alkaline-earth borophosphate, Europium, Ytterbium, Phosphor, Fluorescence

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