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。
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.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1998年第6期899-903,共5页
Journal of Inorganic Materials
关键词
荧光强度
氧化钇
铕离子
粉末材料
纳米材料
nano--scale Y2O3:Eu3+, luminescent intensity, critical concentration, coating
