Metal complexes bearing both electron transporting and hole transporting moieties

US6451455B1 · kind B1 · utility

Assignees

• THE TRUSTEES OF PRINCETON UNIVERSITY · US
• University of Southern California · US

Inventors

• Mark E. Thompson · Villa Park, US
• Yujian You · Lansdale, US
• Andrei Shoustikov · Los Angeles, US
• Paul E. Burrows · Chattaroy, US
• Stephen R. Forrest · Ann Arbor, US

Key dates

• Filing date: Apr 1, 1998
• Grant date: Sep 17, 2002
• Expiry date: Apr 13, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An organic light emitting device comprising a heterostructure for producing electro-luminescence. The heterostructure has a charge carrier layer that includes a compound having molecules having at least one electron transporting moiety that is a 2-methyl-8-quinolinolato ligand coordinated with a metal chosen from the group Al, Ga, and In, and at least one hole transporting moiety. For example, the compound may be bis(2-methyl-8-quinolinolato)[p-(N-phenyl-2-naphthylamino)phenolato]aluminum(III), bis(2-methyl-g-quinolinolato)p-carbazolphenolato)aluminum(III), or bis(2-methyl-8-quinolinolato)(m-carbazolphenolato)aluminum(III).