Organic light emitting device comprising polar matrix, metal dopant and silver cathode

US11355721B2 · kind B2 · utility

Assignee

• Novaled GmbH · DE

Inventors

• Uwe Gölfert · Rabenau, DE
• Carsten Rothe · Dresden, DE
• Vygintas Jankus · Dresden, DE

Key dates

• Filing date: Jun 22, 2016
• Grant date: Jun 7, 2022
• Expiry date: Jul 10, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/321

Abstract

The present invention relates to an electronic device comprising at least one light emitting layer between an anode and a substantially silver cathode, the device further comprising between the cathode and the anode at least one mixed layer comprising (i) at least one substantially covalent electron transport matrix compound comprising at least one polar group selected from phosphine oxide group or diazole group, and (ii) in substantially elemental form, an electropositive element selected from substantially non-radioactive alkali metals, alkaline earth metals, rare earth metals, and transition metals of the fourth period of the Periodic table having proton numbers 22, 23, 24, 25, 26, 27, 28, 29.