期刊
JOURNAL OF LUMINESCENCE
卷 114, 期 1, 页码 77-84出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2004.12.001
关键词
lanthanides; spectroscopy; luminescence; near-infrared emission; rare earths; sol-gel glass; 1,10-phenanthroline
类别
The solubility and uniform distribution of lanthanide complexes in sol-get glasses can be improved by covalently linking the complexes to the sol-gel matrix. In this study, several lanthanide beta-diketonate complexes (Ln = Nd, Sm, Eu, Tb, Er, Yb) were immobilized on a 1,10-phenanthroline functionalized sol-gel glass. For the europium(Ill) complex, a sol-gel material of diethoxydimethylsilane (DEDMS) with polymer-like properties was derived. For the other lanthanide complexes, the sol-gel glass was prepared by using a matrix of tetramethoxysilane (TMOS) and DEDMS. Both systems were prepared under neutral reaction conditions. High-resolution emission and excitation spectra were recorded. The luminescence lifetimes were measured. (c) 2004 Elsevier B.V. All rights reserved.
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