Organic light emitting diode comprising an organic semiconductor layer

US11145817B2 · kind B2 · utility

Assignee

• Novaled GmbH · DE

Inventors

• Regina Luschtinetz · Dresden, DE
• Francois Cardinali · Dresden, DE
• Julien Frey · Dresden, DE
• Domagoj Pavicic · Dresden, DE

Key dates

• Filing date: Apr 7, 2017
• Grant date: Oct 12, 2021
• Expiry date: Jul 11, 2038

Classification

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

Abstract

The invention relates to an Organic light emitting diode comprising an anode electrode, a cathode electrode, at least one emission layer and an organic semiconductor layer, wherein the organic semiconductor layer is arranged between the anode electrode and the cathode electrode and the organic semiconductor layer comprises an alkali organic complex and a compound of formula 1 wherein X is selected from O, S or Se; and R1 and R2 are independently selected from the group consisting of C6 to C18 aryl group and C5 to C18 heteroaryl group, wherein each of R1 and R2 may independently be unsubstituted or substituted with at least one C1 to C12 alkyl group or C1 to C12 alkoxy group, preferably C1 to C4 alkyl group or C1 to C4 alkoxy group; and each R3, R4, R5, and R6 are independently selected from the group consisting of H, C1 to C12 alkyl group or C1 to C12 alkoxy group, preferably H, C1 to C4 alkyl group or C1 to C4 alkoxy group; a method for preparing the same and the compound of Formula 1 comprised therein.