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Molecular assembly and photophysical properties of covalently bonded rare earth polymeric hybrid materials phen–RE–MSMA (MS)

Paper ID Volume ID Publish Year Pages File Format Full-Text
27939 44051 2008 7 PDF Available
Title
Molecular assembly and photophysical properties of covalently bonded rare earth polymeric hybrid materials phen–RE–MSMA (MS)
Abstract

A new series of quaternary and ternary polymeric hybrid materials were assembled from 3-methacryloxypropyltrimethoxysilane (MS), methacrylic acid (MA), 1,10-phenanthroline (phen) and rare earth (Eu3+, Tb3+, and Dy3+) precursors. MS and MSMA (copolymer of MS and MA) behave as structural functional component to form the inorganic polymeric network or inorganic/organic polymeric host through the coordination to rare earth ions, while phen acts as the energy sensitizer for the luminescence of rare earth ions. Subsequently, six novel hybrid materials (phen–Eu(Tb, Dy)–MS, phen–Eu(Tb, Dy)–MSMA) were obtained, in which inorganic component is connected with polymer component through covalent bond. It was found that the introduction of organic polymer unit has influence on the microstructure and especially the luminescent properties of hybrid materials. The quantum efficiency of Eu hybrids was also studied. All these hybrids exhibit the characteristic luminescence of rare earth ions, which substantiates optimum energy match and effective intramolecular energy transfer between the triplet state energy of phen and emissive energy level of Eu3+, Tb3+ and Dy3+. It was worth pointing out that the quaternary hybrid materials (phen–Eu3+(Tb3+, Dy3+)–MSMA) with organic polymer unit (MA) present stronger luminescence intensities, longer lifetimes than those of ternary ones without MA (phen–Eu3+(Tb3+, Dy3+)–MS), suggesting the introduction of organic chain (MA) is beneficial for the photophysical property of hybrids.

Keywords
Photophysical property; Inorganic/polymeric hybrid material; Rare earth ion; Covalently bonded
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Molecular assembly and photophysical properties of covalently bonded rare earth polymeric hybrid materials phen–RE–MSMA (MS)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 199, Issue 1, 5 September 2008, Pages 50–56
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us