In situ sol-gel composition of multicomponent hybrid precursor to hexagon-like Zn2SiO4:Tb3+ microcrystalline phosphors with different silicate sources

被引：13

作者：

Huang, HH ^{[1
]}

Yan, B ^{[1
]}

机构：

[1] Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2006年 / 252卷 / 08期

基金：

中国国家自然科学基金;

关键词：

hexagon-like; in situ sot-gel; luminescent properties;

D O I：

10.1016/j.apsusc.2005.05.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Zn2SiO4 doped with Tb3+ were in situ synthesized by a modified sol-gel technology with the assembly hybrid precursor employed four different silicate sources, i.e. 3-aminopropyl-trimethoxysilane (APMS), 3-aminopropyl-triethoxysilane (APES), 3-aminopropyl-methyl-diethoxysilane (APMES) and tetraethoxysilane (TEOS), respectively. The SEM result shows that there exist some novel unexpected micromorphological structures of hexagon-like with the dimension of 0.5-1.0 mu m. The photoluminescent properties of Zn2SiO4:Tb3+ phosphors have been studied as a function of Tb3+ doping concentration. Cross-relaxation process between identical Tb3+ ions results in the quenching of the D-5(3) emission for high concentration sample. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：2967 / 2972

页数：6

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