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Issue 9, 2003
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Lanthanide complex/polymer composite optical resin with intense narrow band emission, high transparency and good mechanical performance

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Abstract

Novel composite resins possessing good luminescent properties have been synthesized through a free radical copolymerization of styrene, α-methylacrylic acid and the binary or ternary complexes of lanthanide ions (Eu3+ and Tb3+). These polymer-based composite resins not only possess good transparency and mechanical performance but also exhibit an intense narrow band emission of lanthanide complexes under UV excitation. We characterized the molecular structure, physical and mechanical performance, and luminescent properties of the composite resins. Spectra investigations indicate that α-methyl-acrylic acid act as both solubilizer and ligand. Photoluminescence measurements indicate that the lanthanide complexes show superior emission lines and higher intensities in the resin matrix than in the corresponding pure complex powders, which can be attributed to the restriction of molecular motion of complexes by the polymer chain networks and the exclusion of water molecules from the complex. We also found that the luminescence intensity decreased with increasing content of α-methylacrylic acid in the copolymer system. The lifetime of the lanthanide complexes also lengthened when they were incorporated in the polymer matrix. In addition, we found that the relationships between emission intensity and Tb (Eu) content exhibit some extent of concentration quenching.

Graphical abstract: Lanthanide complex/polymer composite optical resin with intense narrow band emission, high transparency and good mechanical performance

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Publication details

The article was received on 06 May 2003, accepted on 04 Jul 2003 and first published on 24 Jul 2003


Article type: Paper
DOI: 10.1039/B305024F
Citation: J. Mater. Chem., 2003,13, 2279-2284
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    Lanthanide complex/polymer composite optical resin with intense narrow band emission, high transparency and good mechanical performance

    D. Wang, J. Zhang, Q. Lin, L. Fu, H. Zhang and B. Yang, J. Mater. Chem., 2003, 13, 2279
    DOI: 10.1039/B305024F

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