Light-emitting device with an iridium complex

US9157023B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Herbert Friedrich Boerner · Aachen, DE
• Helga Hummel · Aachen, DE

Key dates

• Filing date: Nov 8, 2004
• Grant date: Oct 13, 2015
• Expiry date: May 21, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a light-emitting device comprising at least a substrate, an anode, a light-emitting layer and a cathode whereby the light-emitting layer contains an iridium complex IrL3 and whereby at least two ligands L are a dibenzoquinoline. The invention relates in particular to the complexes Ir(dibenzo[f,h]quinoline)2(pentane-2,4-dionate) and Ir(dibenzo[f,h]quinoline)3 which emit light with a wavelength of λmax=545 nm and λmax=595 nm respectively.