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无机材料学报

无机材料学报

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纳米Y2O3:Eu3+粉体荧光强度的增强

李强; 高濂; 严东生   

  1. 中国科学院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:1997-11-28 修回日期:1998-01-19 出版日期:1998-12-20 网络出版日期:1998-12-20

Enhancement of the Luminescent Intensity of Nano-Scale Y2O3:Eu3+ Powders

LI Qiang; GAO Lian; YAN Dong--Sheng   

  1. State Key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute ofCeramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1997-11-28 Revised:1998-01-19 Published:1998-12-20 Online:1998-12-20

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摘要： 本文采用化学合成手段制备了不同粒径和Ey3＋掺杂浓度的纳米Y2O3：Eu3＋粉体，并采用包膜的方法对纳米粉体进行表面处理．通过对荧光性能的研究，发现纳米Y2O3：Eu3＋粉体的激活剂临界浓度明显提高，并导致材料的荧光强度明显增强．另外，经包膜处理的纳米Y2O3：Eu3＋粉体，由于有效地消除了表面悬空键，荧光强度获得进一步提高

关键词: 纳米Y2O3：Eu3＋, 荧光强度, 激活剂临界浓度, 包膜

Abstract: Nano-scale Y2O3:Eu3+ powders with different grain sizes and Eu3+ concentrations were prepared by chemical process, and dealed with coating. It was found that the Eu3+ critical concentration of nano-scale Y2O3:Eu3+ powders was increased obviously, and it caused the luminescentintensity improved. In addition, because the hanging bonds on the surface of coating nano-scaleY2O3:Eu3+ powders were mostly vanished, the luminescent intensity was further enhanced.

Key words: nano--scale Y2O3:Eu3+, luminescent intensity, critical concentration, coating

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