Conjugated polymers and blends containing carbazole, representation and use thereof

US7834136B2 · kind B2 · utility

Assignee

• Covion Organic Semiconductors GmbH · DE

Inventors

• Amir Hossain Parham · Frankfurt am Main, DE
• Aurelie Falcou · Mainz, DE
• Susanne Heun · Bad Soden, DE
• Heinrich Becker · Königstein, DE
• Esther Breuning · Ober-Ramstadt, DE

Key dates

• Filing date: Feb 4, 2004
• Grant date: Nov 16, 2010
• Expiry date: Jun 10, 2026

Classification

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

Abstract

The present invention relates to conjugated polymers comprising specific carbazole structural units. The materials according to the invention display steeper current-voltage curves and are therefore better suited to use in organic light-emitting diodes than are comparative polymers which do not contain these units.