Novel Europium Complex for Electroluminescent Devices with Sharp Red Emission
- 1 April 1995
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 34 (4R)
- https://doi.org/10.1143/jjap.34.1883
Abstract
A volatile Eu complex, Eu(TTA)3(phen) (TTA=thenoyltrifluoroacetone, phen=1,10-phenanthroline), was synthesized and applied to an electroluminescent (EL) cell structure of [ITO(=indium-tin-oxide)/hole transporting layer/emitting layer (host material=azomethin zinc complex, and dopant= Eu(TTA)3(phen))/MgIn]. The emitting layers were formed by a codeposition technique. A red emission (EL peak wavelength 614 nm) with a very sharp spectral band was observed from the EL cell with 5 wt% Eu(TTA)3(phen), and a maximum luminance of 137 cd/m2 was achieved.Keywords
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