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

Paper ID Volume ID Publish Year Pages File Format Full-Text
29004 44112 2008 7 PDF Available
Title
Synthesis and photophysical properties of novel organic–inorganic hybrid materials covalently linked to a europium complex
Abstract

A novel sol–gel derived hybrid material (classed as Eu-DBM-Si) covalently grafted with Eu(DBM-OH)3·2H2O (where DBM-OH = o-hydroxydibenzoylmethane) was prepared through the primary β-diketone ligand DBM-OH. All the synthesized ligands were characterized by 1H 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)3·2H2O, 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.

Keywords
Organic–inorganic hybrid composite; Photophyscial property; β-Diketone; Europium complex
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Synthesis and photophysical properties of novel organic–inorganic hybrid materials covalently linked to a europium complex
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 200, Issues 2–3, 15 December 2008, Pages 318–324
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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