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无机材料学报

无机材料学报

• 研究论文 • 上一篇    

M3MgSi2O8(M=Sr,Ba)中Ce3+的发光性质

黄立辉1; 刘行仁1,2; 王晓君1; 郑著宏1   

  1. 1. 中国科学院长春物理研究所; 长春 130021; 2. 中国科学院激发态物理开放研究实验室 长春 130021
  • 收稿日期:1998-06-08 修回日期:1998-07-03 出版日期:1999-04-20 网络出版日期:1999-04-20

Luminescence Properties of Ce3+ Doped M3MgSi2O8(M=Sr, Ba)Pyrosilicates

HUANG Li-Hui1; LIU Xing-Ren1,2; WANG Xiao-jun1; ZHENG Zhu-Hong1   

  1. 1.Changchun Institute of Physics; Chinese Academy of Sciences Changchun 130021 China;2.Laboratory of Excited State Processes; Chinese Academy of Sciences Changchun 130021 China
  • Received:1998-06-08 Revised:1998-07-03 Published:1999-04-20 Online:1999-04-20

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摘要： 本文合成了掺Ce3+的M3MgSi2O8（M＝Sr，Ba）荧光粉，这两种荧光粉在UV光激发下发射出较强的蓝紫色光，报道了它们室温下的激发光谱和发射光谱以及77K低温下的荧光光谱．阐述了在这两种焦硅酸盐体系中，Ce3+均形成两个发光中心，且随Sr，Ba顺序，荧光体发射峰稍稍向短波移动．

关键词: Ce3+离子, 荧光光谱, 焦硅酸盐, 发光中心

Abstract: The spectral properties of Ce3+ doped M3MgSi2O8(M=Sr, Ba) pyrosilicates at 298K and 77K were studied. Under UV light excitation, Ce3+ doped
M3MgSi2O8(M=Sr, Ba) pyrosilicates phosphors emit efficient bluish violet light. In the M3MgSi2O8(M=Sr,Ba) system the emission spectra of Ce3+ ions consist of the emission bands of
the transitions from the Ce3+ 5d→2F5/2 and 5d→2F7/2 levels, Ce3+ ions can substitute for Sr2+ or Ba2+ ions, and
then form two different emission centers, respectively. According to the order from Sr2+ to Ba2+ ion, with ionic radius increases,
the spectrum of this phosphor slightly shifts to short wavelength and the emission intensity decreases.

Key words: Ce3+ ion, fluorescence spectrum, pyrosilicate, emission center

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