NDLI: Luminescent organic–inorganic hybrid materials based on lanthanide containing ionic liquids and sylilated β-diketone

Content Provider	Springer Nature Link
Author	Wang, Yige Feng, Yu Zhao, Hongsheng Gan, Quanying Yu, Xiaoyan
Copyright Year	2011
Abstract	In this work, we report the luminescent organic–inorganic hybrid materials prepared by hydrolysis and condensation of sylilated β-diketone under acid conditions in the presence of carboxyl-functionalized ionic liquid in which Eu$^{3+}$ ions are coordinated to the oxygen atoms of carboxylate groups from the ionic liquids. The obtained materials were characterized with FT-IR, TG and photoluminescence spectroscopy. FT-IR spectra imply that Eu$^{3+}$ ions are still coordinated to the ionic liquid in the hybrid materials. Excitation and emission spectra demonstrate that the energy transfer occurs from the β-diketone molecules covalently bonded with silica to Eu$^{3+}$ ions. The Eu$^{3+}$ ($^{5}$D$_{0}$) quantum efficiency value of the hybrid materials has been estimated based on the emission spectrum and the value of lifetime. A large value of ratio (16.44) between the intensities of the $^{5}$D$_{0}$→$^{7}$F$_{2}$ and $^{5}$D$_{0}$→$^{7}$F$_{1}$ transition and high value of $^{5}$D$_{0}$ quantum efficiency (51.01%) are obtained.
Starting Page	711
Ending Page	715
Page Count	5
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	58
Issue Number	3
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2011-04-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ionic liquids Lanthanide Sol–gel Photoluminescence Optical and Electronic Materials Ceramics, Glass, Composites, Natural Methods Inorganic Chemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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