Synthesis and photophysical properties of novel organic-inorganic hybrid materials covalently linked to a europium complex

被引：36

作者：

Guo, Xianmin ^{[1
,2
]}

Guo, Huadong ^{[1
,2
]}

Fu, Lianshe ^{[3
]}

Zhang, Hongjie ^{[1
]}

Carlos, L. D. ^{[3
]}

Deng, Ruiping ^{[1
]}

Yu, Jiangbo ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Applicat Rare Earth Resources, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China

[3] Univ Aveiro, Dept Phys, CICECO, P-3810193 Aveiro, Portugal

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2008年 / 200卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

Organic-inorganic hybrid composite; Photophyscial property; beta-Diketone; Europium complex;

D O I：

10.1016/j.jphotochem.2008.08.016

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：

A novel sol-gel derived hybrid material (classed as Eu-DBM-Si) covalently grafted with Eu(DBM-OH)(3).2H(2)O (where DBM-OH=o-hydroxydibenzoylmethane) was prepared through the primary beta-diketone ligand DBM-OH. All the synthesized ligands were characterized by H-1 NMR, elemental analyses and Fourier transform infrared spectra (FTIR). The resultant Eu-DBM-Si material exhibited good transparent and homogenous property. Compared to the Eu-DBM hybrid prepared by physically doped silicon dioxide with Eu(DBM-OH)V2H2O, the Eu-DBM-Si hybrid presented more efficient ligand-to-Eu3+ energy transfer and a significant improvement in the measured emission quantum yield. Furthermore, the photophysical properties of these hybrid materials, such as the photoluminescence (PL) spectra, PL intensities, symmetry properties. lifetime decays, and Judd-Ofelt parameters were also investigated in detail. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：318 / 324

页数：7

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