Abstract

Organic electroluminescent (EL) devices with a trivalent europium (Eu) complex as an emitter were fabricated. Triple-layer-type cells with a structure of glass substrate/indium-tin oxide/ triphenyldiamine derivative (TPD)/Eu complex: 1,3,4-oxadiazole derivative (PBD)/aluminum complex (Alq)/Mg:Ag exhibit bright red luminescence upon applying dc voltage. The EL spectrum consists of extremely sharp emission bands, which is a typical luminescence spectrum of the Eu complex. Luminance of 460 cd/m2 with an emission peak at 614 nm is achieved at a drive voltage of 16 V. This is the highest luminance so far obtained for the EL cells having a Eu complex as an emitter.

Keywords

ElectroluminescenceEuropiumLuminescenceMaterials scienceCommon emitterOptoelectronicsSubstrate (aquarium)LuminancePhotoluminescencePhosphorOxideIndium tin oxideAnalytical Chemistry (journal)ChemistryOpticsLayer (electronics)NanotechnologyPhysics

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Publication Info

Year
1994
Type
article
Volume
65
Issue
17
Pages
2124-2126
Citations
506
Access
Closed

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Cite This

Junji Kido, Hiromichi Hayase, Kenichi Hongawa et al. (1994). Bright red light-emitting organic electroluminescent devices having a europium complex as an emitter. Applied Physics Letters , 65 (17) , 2124-2126. https://doi.org/10.1063/1.112810

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DOI
10.1063/1.112810