Rylene monoimide derivatives and use thereof as photosensitizers in solar cells and photodetectors

US9054325B2 · kind B2 · utility

Assignees

• 03;BASF SE · DE
• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Flavio Luiz Benedito · Ludwigshafen, DE
• Ingmar Bruder · Neuleiningen, DE
• Peter Erk · Bischofswerda, DE
• Neil Gregory Pschirer · Mainz, DE
• Robert Send · Karlsruhe, DE
• Klaus Muellen · Cologne, DE
• Henrike Wonneberger · Mannheim, DE
• Chen Li · Santa Clara, US

Key dates

• Filing date: Feb 8, 2013
• Grant date: Jun 9, 2015
• Expiry date: May 21, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Thin layers or films of metal oxides are used as a semiconductor material of solar cells and they are coated with a sensitizer to achieve the high absorption of sunlight. Various dyes have been used as sensitizers in solar cells. Rylene monoimide derivatives are developed as photosensitizers for dye-sensitized solar cells and as photodetectors. The Rylene monoimide derivatives have very good quantum efficiencies, particularly in the NIR region of the absorption spectrum.