Electroluminescence from a volatile europium complex

Three new strongly chelating heterocyclic ligands containing pyridine, imidazole and triazine rings have been used to make ternary complexes of Europium(III) ions together with trifluoroacetylacetonate. The complex containing 5,6-diphenyl-3-(2-pyridyl)-1,2,3-triazine produced efficient electrolumine...

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Bibliographic Details
Published in:Thin solid films 2006-02, Vol.496 (2), p.489-493
Main Authors: Stathatos, Elias, Panayiotidou, Lefkia, Lianos, Panagiotis, Keramidas, Anastasios D.
Format: Article
Language:English
Subjects:
Applied sciences
Chelating ligands
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electroluminescence
Electronics
Europium
Exact sciences and technology
Light-emitting devices
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optoelectronic devices
Other luminescence and radiative recombination
Physics
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
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Summary:Three new strongly chelating heterocyclic ligands containing pyridine, imidazole and triazine rings have been used to make ternary complexes of Europium(III) ions together with trifluoroacetylacetonate. The complex containing 5,6-diphenyl-3-(2-pyridyl)-1,2,3-triazine produced efficient electroluminescence in an Organic Light Emitting Diode in the presence of Poly(9-vinylcarbazole) and 8-Hydroxyquinoline aluminum salt, used as hole and electron transporters, respectively. The external quantum efficiency of this device was 0.16%.
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2005.08.170