Cathode including a mixture of a metal and an insulator for organic devices and method of making the same

US6525466B1 · kind B1 · utility

Assignee

• Arizona Board of Regents on Behalf of the University of Arizona · US

Inventors

• Ghassan Jabbour · Phoenix, US
• Nasser Peyghambarian · Tucson, US
• Bernard Kippelen · Tucson, US

Key dates

• Filing date: Apr 7, 2000
• Grant date: Feb 25, 2003
• Expiry date: Apr 7, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/631

Abstract

An organic device including an organic layer of organic material; and a cathode in contact with the organic layer and including a mixture of a metal and an insulator. The mixture can be an alloy or a composite of the metal and insulator, and can be for example a mixture of Al:LiF or Al:CsF. The device can be incorporated in an organic light-emitting device, an organic transistor, an organic solid state laser, or any device requiring carrier injection into an organic material.