Photoluminescent Epoxy/Gd2O3:Eu3+ UV-cured Nanocomposites
authors Roppolo, I; Debasu, ML; Ferreira, RAS; Rocha, J; Carlos, LD; Sangermano, M
nationality International
journal MACROMOLECULAR MATERIALS AND ENGINEERING
author keywords cationic UV curing; coatings; nanocomposites; photoluminescent nanorods
keywords LUMINESCENT HYBRID MATERIALS; IN-SITU POLYMERIZATION; COPPER IODIDE CLUSTERS; OPTICAL-PROPERTIES; ENERGY-TRANSFER; TRANSPARENT NANOCOMPOSITES; UP-CONVERSION; EU-3+ IONS; NANOPARTICLES; COMPLEXES
abstract UV-cured photoluminescent coatings emitting in the visible spectral region are obtained by dispersing Gd2O3:4 mol% Eu3+ nanorods in three different commercially available photocurable epoxy resins. The effect of the concentration of the Gd2O3:4 mol% Eu3+ nanorods on the kinetics of the photocuring reaction is followed using real-time FT-IR. Thermal and the mechanical properties of the cured films are also investigated. Moreover, the effect of the matrix and nanorod concentration in the composites on the emission and excitation spectra and the D-5(0)(C-2) decay time of Eu3+ is evaluated. The composite materials present original photoluminescence properties and demonstrate the potential of UV curing as a technique to develop smart photoactive coatings.
publisher WILEY-V C H VERLAG GMBH
issn 1438-7492
year published 2013
volume 298
issue 2
beginning page 181
ending page 189
digital object identifier (doi) 10.1002/mame.201200020
web of science category Materials Science, Multidisciplinary; Polymer Science
subject category Materials Science; Polymer Science
unique article identifier WOS:000314973900007
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journal impact factor 2.690
5 year journal impact factor 2.777
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