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Photoluminescent PMMA polymer films doped with Eu3+-β-diketonate crown ether complex

Paper ID Volume ID Publish Year Pages File Format Full-Text
26169 43937 2013 6 PDF Available
Title
Photoluminescent PMMA polymer films doped with Eu3+-β-diketonate crown ether complex
Abstract

In this work it is reported the photoluminescence sensitization effect of the bis(dibenzo-18-crown-6)diaquatris(thenoyltrifluoroacetonate)europium(III) compound, [Eu(tta)3(DB18C6)2(H2O)2], doped into a blend of poly(methylmethacrylate) (PMMA) and polyethylene glycol (PEG) in film form. The TGA results indicate that the Eu3+-complex precursor is immobilized in the polymer matrix by the interaction between the Eu3+ complex and the oxygen atoms of the PMMA polymer. The thermal behavior of these luminescent systems is similar to that of the undoped polymer. The emission spectra of the Eu3+-complex in the PMMA/PEG blends recorded at room temperature exhibit the characteristic bands arising from the 5D0 → 7FJ (J = 0–4) intraconfigurational transitions. The emission quantum efficiency of the Eu3+ ion doped films increased significantly, indicating an effective interaction between the Eu3+-complex and the polymer matrix, and both the substitution of water molecules in the first coordination sphere and an efficient luminescence co-sensitization of the Eu3+ luminescent centers.

Graphical abstractPhotograph of PMMA/PEG blend film doped with 1% [Eu(tta)3(DB18C6)2(H2O)2] complex exhibiting red emission under UV irradiation at 366 nm.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Effective interaction between the Eu3+-complex and the polymer matrix are observed. ► The luminescent films are homogeneous and preserve the polymer aspects. ► Emission quantum efficiency for the Eu3+-doped polymer films increased significantly. ► PMMA provides efficient luminescence co-sensitization of the Eu3+ luminescent centers.

Keywords
Europium complexes; Crown ethers; PMMA; Luminescent film
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Photoluminescent PMMA polymer films doped with Eu3+-β-diketonate crown ether complex
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 251, 1 January 2013, Pages 154–159
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