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．
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 2 increases. Also, it exitsthe bluc-shift in the X-ray PLS of nano-Y2O3:Eu3+. The wave length and intensity of the peak(5Do -+7 F2)are connected with the grain size of the powders.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第2期237-241,共5页
Journal of Inorganic Materials
关键词
均相沉淀
荧光性
纳米材料
铕
氧化钇
nano-Y_2O_3:Eu_(3+),homogeneous precipitation, blue-shift
