Synthesis and Properties of Europium Complexes with β-Diketone Ligands for Organic Electroluminescent Devices
- 1 September 1998
- journal article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 71 (9) , 2253-2258
- https://doi.org/10.1246/bcsj.71.2253
Abstract
Europium complexes with new β-diketone ligands with fluorene for organic electroluminescent (EL) devices have been synthesized and their properties examined. The absorption spectra of the complexes were varied by changing the conjugated system of the β-diketone; also, the energy transfer from the host material to the europium complexes and the intramolecular energy transfer have been improved. Concerning the volatility, the thermal properties of the europium complexes were improved by using phenanthroline derivatives. We fabricated organic EL devices using the synthesized complexes, and investigated the luminance of the devices.This publication has 13 references indexed in Scilit:
- Temperature-dependent electroluminescence from (Eu, Gd) coordination complexesApplied Physics Letters, 1997
- Red electroluminescence from a thin organometallic layer of europiumJournal of Applied Physics, 1996
- Fluorescence Enhancement by Electron-Withdrawing Groups on ß-Diketones in Eu(III)-ß-diketonato-topo Ternary ComplexesAnalytical Sciences, 1996
- Novel Europium Complex for Electroluminescent Devices with Sharp Red EmissionJapanese Journal of Applied Physics, 1995
- Bright red light-emitting organic electroluminescent devices having a europium complex as an emitterApplied Physics Letters, 1994
- Sharply directed emission in organic electroluminescent diodes with an optical-microcavity structureApplied Physics Letters, 1994
- Relations between Intramolecular Energy Transfer Efficiencies and Triplet State Energies in Rare Earth β-diketone ChelatesBulletin of the Chemical Society of Japan, 1970
- Some Properties of Europium β-diketone Chelates I (Synthesis and Fluorescent Properties)Japanese Journal of Applied Physics, 1968
- Synthesis and Fluorescence of Some Trivalent Lanthanide ComplexesJournal of the American Chemical Society, 1964
- Intramolecular Energy Transfer The Fluorescence of Complexes of EuropiumThe Journal of Chemical Physics, 1942