Compounds with terminal heteroarylcyanovinylene groups and their use in organic solar cells

US9917260B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Sudhakar Sundarraj · Singapore, SG
• Christian EICKHOFF · Mannheim, DE
• Sheeja Bahulayan · Singapore, SG
• Robert Send · Karlsruhe, DE
• Yuichi Nishimae · Basel, CH
• Helmut Reichelt · Neustadt, DE
• Junichi Tanabe · Amagasaki, JP
• Peter Erk · Bischofswerda, DE

Key dates

• Filing date: Aug 14, 2014
• Grant date: Mar 13, 2018
• Expiry date: Nov 3, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The present invention relates to a photoactive material comprising a donor substance and an acceptor substance, wherein the donor substance comprises or consists of one or more compounds of formula (I) described herein, or the acceptor substance comprises or consists of one or more compounds of formula (I) described herein, or the donor substance comprises or consists of a first compound of formula (I) described herein and the acceptor substance comprises a second compound of formula (I) described herein with the proviso that the first and second compound are not the same, as well as to an organic solar cell comprising said photoactive material. The present invention also relates to a photoelectric conversion device comprising or consisting of two or more organic solar cells comprising said photoactive material and to compounds of formula (I) as described herein for use as donor substance or as acceptor substance in a photoactive material, Further, the present invention relates to the use of a compound of formula (III) as described herein in the synthesis of a compound of formula (I)as described herein.