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无机材料学报

无机材料学报

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纳米Y2O3:Eu3+的荧光特性

李强; 高濂; 严东生   

  1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室; 上海200050
  • 收稿日期:1996-07-01 修回日期:1996-08-26 出版日期:1997-04-20 网络出版日期:1997-04-20

Luminescent Characterization of Nano-Y2O3:Eu3+

LI Qiang; GAO Lian; YAN Dongsheng   

  1. State Key Lab of High Performance Ceramics and Saperfine Microstructure; Shanghai Institute ofCeramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1996-07-01 Revised:1996-08-26 Published:1997-04-20 Online:1997-04-20

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摘要： 本文采用均相沉淀法制备纳米Y2O3:Eu3+，并控制反应条件，得到不同粒径的微粉，与非纳米粉体相比．纳米Y2O3：Eu3+的X－ray衍射粉变宽，2θ角增大，同时发射光谱存在蓝移现象，谱峰波长及强度与粒径有密切联系．

关键词: 纳米Y2O3：Eu3＋, 均相沉淀, 蓝移

Abstract: Nano-Y2O3:Eu3+ was prepared with the method of homogeneous precipitation. Controlling theconditions of the reaction, we obtained nano-scale powders with different grain sizes. Compared to ordinarypowders of Y2O3:Eu3+, the XRD peaks of nan-Y2O3:Eu3+ become wide, and 2θ increases. Also, it exitsthe bluc-shift in the X-ray PLS of nano-Y2O3:Eu3+.The wave length and intensity of the peak(5Do →7F2)are connected with the grain size of the powders.

Key words: nano-Y2O3:Eu3+, homogeneous precipitation, blue-shift