Heteroleptic carbene complexes and the use thereof in organic electronics

US11189806B2 · kind B2 · utility

Assignee

• UDC IRELAND LIMITED · IE

Inventors

• Evelyn Fuchs · Mannheim, DE
• Oliver Molt · Hirschberg, DE
• Korinna Dormann · Bad Dürkheim, DE
• Thomas Gessner · Ypsilanti, US
• Nicolle Langer · Heppenheim, DE
• Ingo Muenster · Haßloch, DE
• Jianqiang Qu · Shanghai, CN
• Christian Lennartz · Dublin, IE
• Christian Schildknecht · Schifferstadt, DE
• Soichi Watanabe · Mannheim, DE
• Gerhard Wagenblast · Wachenheim, DE
• Guenter Schmid · Hemhofen, DE
• Herbert Friedrich Boerner · Aachen, DE
• Volker Van Elsbergen · Aachen, DE

Key dates

• Filing date: Mar 6, 2019
• Grant date: Nov 30, 2021
• Expiry date: Mar 6, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/6572
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to heteroleptic complexes comprising a phenylimidazole or phenyltriazole unit bonded via a carbene bond to a central metal atom, and phenylimidazole ligands attached via a nitrogen-metal bond to the central atom, to OLEDs which comprise such heteroleptic complexes, to light-emitting layers comprising at least one such heteroleptic complex, to a device selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, to the use of such a heteroleptic complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge blocker.