Title: Ionic liquid as plasticizer for europium(III)-doped luminescent poly(methyl methacrylate) films
Authors: Lunstroot, Kyra
Driesen, Kris
Nockemann, Peter
Viau, Lydie
Mutin, P. Hubert
Vioux, Andre
Binnemans, Koen # ×
Issue Date: 2010
Publisher: Royal soc chemistry
Series Title: Physical Chemistry Chemical Physics vol:12 issue:8 pages:1879-1885
Abstract: Flexible luminescent polymer films were obtained by doping europium(III) complexes in blends of poly(methyl methacrylate) (PMMA) and the ionic liquid 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [C(6)mim][Tf2N]. Different europium(III) complexes have been incorporated in the polymer/ionic liquid matrix: [C(6)mim][Eu(nta)(4)], [C(6)mim][Eu(tta)(4)], [Eu(tta)(3)(phen)] and [choline](3)[Eu(dpa)(3)], where nta is 2-naphthoyltrifluoroacetonate, tta is 2-thenoyltrifluoroacetonate, phen is 1,10-phenanthroline, dpa is 2,6-pyridinedicarboxylate ( dipicolinate) and choline is the 2-hydroxyethyltrimethyl ammonium cation. Bright red photoluminescence was observed for all the films upon irradiation with ultraviolet radiation. The luminescent films have been investigated by high-resolution steady-state luminescence spectroscopy and by time-resolved measurements. The polymer films doped with beta-diketonate complexes are characterized by a very intense D-5(0) -> F-7(2) transition ( up to 15 times more intense than the D-5(0) -> F-7(1)) transition, whereas a marked feature of the PMMA films doped with [choline](3)[Eu(dpa)(3)] is the long lifetime of the D-5(0) excited state (1.8 ms).
ISSN: 1463-9076
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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