Preparation and luminescence properties of ormosil hybrid materials doped with Tb(Tfacac)3phen complex via a sol-gel process

被引：22

作者：

Guo, JF ^{[1
]}

Fu, LS ^{[1
]}

Li, HR ^{[1
]}

Zheng, YX ^{[1
]}

Meng, QG ^{[1
]}

Wang, SB ^{[1
]}

Liu, FY ^{[1
]}

Wang, J ^{[1
]}

Zhang, HJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 24-25期

关键词：

sol-gel; rare earth complex; hybrid materials; thin films;

D O I：

10.1016/S0167-577X(03)00237-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, silica-based transparent organic-inorganic hybrid materials were prepared via the sol-gel process. Tetraethoxysilane (TEOS) and 3-glycidoxypropyltrimethoxysilane (GPTMS) were used as the inorganic and organic precursors, respectively. The terbium complex, Tb(Tfacac)(3)phen (Tfacac = 1,1,1-trifluoroacetylacetone, phen = 1, 10-phenanthroline) was successfully doped into organically modified silicate (ormosil) matrix derived from TEOS and GPTMS, and the luminescent properties of the resultant ormosil composite phosphors [ormosil/Th(Tfacac)(3)phen] were investigated compared with those of the Tb(Tfacac)(3)phen incorporated into SiO2 derived from TEOS (labeled as silica/Tb(Tfacac)(3)phen). Both kinds of the materials show the characteristic green emission of Tb3+ ion. The luminescence behavior of the resultant composite products was dependent on the matrix composition. The optimized lanthanide complex concentration in the ormosil/Tb(Tfacac)(3)phen was increased compared with in silica/Tb(Tfacac)(3)phen. Furthermore, the lifetime of Tb3+ in Tb(Tfacac)(3)phen, silica/Tb(Tfacac)(3)phen and ormosil/Tb(Tfacac)(3)phen follows the sequence: onmosil/Tb(Tfacac)(3)phen>silica/Tb(Tfacac)(3)phen>pure Tb(Tfacac)(3)phen. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：3899 / 3903

页数：5

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