Luminescent hybrid films obtained by covalent grafting of terbium complex to silica network

被引：60

作者：

Liu, FY ^{[1
]}

Fu, LS ^{[1
]}

Wang, J ^{[1
]}

Liu, Z ^{[1
]}

Li, HR ^{[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：

THIN SOLID FILMS | 2002年 / 419卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

hybrid materials; luminescence; sol-gel;

D O I：

10.1016/S0040-6090(02)00734-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Luminescent hybrid thin films consisting of terbium complex covalently bonded to a silica-based network have been obtained in situ via a sol-gel approach. A new monomer, N-(4-benzoic acid-yl), N'-(propylthiethoxysilyl)urea (PABI), has been synthesized by grafting isocyanatopropyltriethoxysilane (ICPTES) to p-aminobenzoic acid and characterized by H-1 NMR IR and MS, The monomer acts as a ligand for Tb3+ ion and as a sol-gel precursor. Band emission front Tb3+ ion due to an efficient ligand-to-metal energy transfer was observed by UV excitation. The decay curves of Tb3+ in the hybrid films were measured. The energy difference between the triplet state energy of PABI and the D-5(4) level of Tb3+ ion falls in the exciting range to sensitize Tb3+ ion fluorescence. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：178 / 182

页数：5

共 26 条

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