Zn_2SiO_4基体掺杂稀土离子纳米粉体的制备和光谱特性  

Preparation and Spectral Properties of Eu^(3+)-Y^(3+)Codoped Zn_2SiO_4

作　　者：翁之望[1] 郭范[1] 谢谨[1] 杨治平[1] 郑化桂[1] 

机构地区：[1]中国科学技术大学化学系

出　　处：《中国稀土学报》2002年第6期590-592,共3页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金资助(50171060)项目

摘　　要：采用sol gel法在Zn2SiO4基体中掺杂稀土离子Eu3+和Y,制备了Zn2SiO4∶Eu及Zn2SiO4∶Eu,Y纳米粉体,研究不同稀土离子浓度对荧光强度的影响,并采用热重 差热分析、X射线粉末衍射、荧光光谱分析等技术手段进行表征,目标产物的平均粒径分别为31nm和27nm。Nanocrystalline Zn2SiO4∶Eu and Zn2SiO4∶Eu,Y were synthesized by SolGel process. The photoluminescence (PL) spectra of Zn2SiO4∶Eu and Zn2SiO4∶Eu,Y were measured at different concentration of Eu3+ and in the different ratio of Eu to Y. The samples were characterized by Xray diffraction, TG/DTA analysis and IR spectra.

关 键 词：Zn2SiO4基体 掺杂 稀土离子 纳米粉体 制备 光谱特性 稀土 溶胶凝胶法 硅酸锌 荧光 荧光材料 

分 类 号：O482.31[理学—固体物理] TN10[理学—物理]