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Photoluminescence analysis of Lewis base coordinate europium(III) β-diketonate complex
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  • Journal title : Analytical Science and Technology
  • Volume 28, Issue 3,  2015, pp.204-211
  • Publisher : The Korean Society of Analytical Science
  • DOI : 10.5806/AST.2015.28.3.204
 Title & Authors
Photoluminescence analysis of Lewis base coordinate europium(III) β-diketonate complex
Sung-Hwan, Lee; Gyu-Hwan, Lee;
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 Abstract
Lanthanide complexes have attracted much attention because of their unique light emitting property. The light-emitting efficiencies of europium β-diketonate complexes were compared with those of complexes coordinated by the ligands of amines or phosphine oxides. The results demonstrated that the complexes that were coordinated by phosphine oxides had higher light-conversion performance than those coordinated by amines. The highest light-emitting efficiency was observed when the ligand of trioctylphosphine oxide was coordinated. In order to determine the coordination equivalency of trioctylphosphine oxide in the above complexes, 31P-NMR and their photoluminescence spectra were measured. The findings showed that the europium β-diketonate complex had one or two coordination equivalencies of trioctylphosphine oxide according to the steric hindrance of its original ligand.
 Keywords
europium β-diketonate;EuFOD;lanthanide;down shifting;trioctylphosphine oxide;
 Language
Korean
 Cited by
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