Increasing photoconductivity by adjusting the discotic phase

US5393626A · kind A · utility

Assignee

• BASF SE

Inventors

• Friedrich Closs · Bischofswerda, DE
• Thomas Frey · Schwetzingen, DE
• Dirk Funhoff · Heidelberg, DE
• Karl Siemensmeyer · Bischofswerda, DE
• Helmut Ringsdorf · Mainz, DE
• Dietrich Haarer · Bayreuth, DE
• Peter Strohriegl · Bayreuth, DE

Key dates

• Filing date: Dec 16, 1993
• Grant date: Feb 28, 1995
• Expiry date: Dec 16, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/328
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to photoconductors composed of low molecular weight or polymeric organic compounds with liquid crystal properties, where the photoconduction in the discotic phase is higher than in the non-liquid-crystal phases, and to a method for increasing the photoconductivity by molecular ordering in photoconductors.