Phosphorescent metal complex, process for production and light-emitting component

US9169434B2 · kind B2 · utility

Assignee

• OSRAM GmbH · DE

Inventors

• Luisa De Cola · Strasbourg, FR
• Claudia Bizzarri · Munster, DE
• David Hartmann · Erlangen, DE
• Sabine Szyszkowski · Dachsbach, DE
• Wiebke Sarfert · Herzogenaurach, DE
• Guenter Schmid · Hemhofen, DE

Key dates

• Filing date: Nov 17, 2010
• Grant date: Oct 27, 2015
• Expiry date: Jun 28, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K50/135
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention presents, firstly, the principle that simple and known emitter materials which are uncharged per se, as known, for example, from OLED technology, can be converted to a charged species by the introduction of a charged imidazolinium radical. This charged species can then be used in organic light-emitting electrochemical cells.