Phenanthroazole compounds as hole transporting materials for electro luminescent devices

US9028979B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christian Schildknecht · Schifferstadt, DE
• Christian Lennartz · Dublin, IE
• Soichi Watanabe · Mannheim, DE
• Gerhard Wagenblast · Wachenheim, DE
• Peter Murer · Oberwil, CH
• Thomas Schäfer · Basel, CH
• Natalia Chebotareva · Rixheim, FR
• Andrea Ricci · Bellinzona, CH
• Kristina Bardon · Waldshut-Tiengen, DE

Key dates

• Filing date: Jun 11, 2010
• Grant date: May 12, 2015
• Expiry date: May 4, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to electroluminescent devices, comprising a compound of the formula (I) as a component of the transporting/injecting and/or electron blocking layer. The compounds of formula (I) may function alone, or in combination with dopants to provide improved efficiency, driving voltage and/or lifetime of electroluminescent devices.