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Rare earth (Eu/Tb)/phthalic acid functionalized inorganic Si–O/organic polymeric hybrids: Chemically bonded fabrication and photophysical property

Paper ID Volume ID Publish Year Pages File Format Full-Text
27102 44001 2010 8 PDF Available
Title
Rare earth (Eu/Tb)/phthalic acid functionalized inorganic Si–O/organic polymeric hybrids: Chemically bonded fabrication and photophysical property
Abstract

The novel rare earth organic/inorganic/polymeric hybrids Eu/Tb–(PHA-Si)–PMMA have been fabricated through chemically bonding assembly technology. The photoactive ligand PHA (O-phthalic anhydride) modified by silane coupling agent APES ((3-aminopropyl) triethoxysilane) is used as a double-functional bridge molecule to link the lanthanide ions and the silica with covalent bonds to form the inorganic Si–O networks. The polymer ligand PMMA (poly methyl methacrylate) is used as the co-ligand coordinating to Eu3+ or Tb3+ to form the organic polymeric C–C chains, which is prepared through the direct addition polymerization of MMA monomer in the presence of the initiator BPO (benzoyl peroxide). These hybrids are examined by FTIR, TG and luminescence spectra to investigate their composition and photophysical properties. And the luminescence quantum efficiency of the europium hybrids is calculated. Compared to the binary hybrid materials Eu/Tb–(PHA-Si) without organic polymer PMMA, the ternary hybrid materials Eu/Tb–(PHA-Si)–PMMA exhibit stronger luminescence intensities, longer lifetimes and higher quantum efficiency, which indicates the introduction of the organic polymer PMMA bring the improvement on the luminescence property of the hybrid system.

Keywords
Organic/inorganic/polymeric hybrid material; Photophysical property; Rare earth ion; Luminescence
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Rare earth (Eu/Tb)/phthalic acid functionalized inorganic Si–O/organic polymeric hybrids: Chemically bonded fabrication and photophysical property
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 210, Issue 1, 5 February 2010, Pages 36–43
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
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