Organic photoactive device

US8426727B2 · kind B2 · utility

Assignees

• HELIATEK GMBH · DE
• Universität Ulm · DE

Inventors

• Martin Pfeiffer · Winnenden, DE
• Christian Uhrich · Dresden, DE
• Annette Petrich · Dresden, DE
• Rico Schuppel · Dresden, DE
• Kerstin Schulze · Dresden, DE
• Karl Leo · Dresden, DE
• Peter Bauerle · Ludwigsburg, DE
• Egon Reinold · Brackenheim, DE
• Eduard Brier · Heidenheim, DE

Key dates

• Filing date: Mar 3, 2006
• Grant date: Apr 23, 2013
• Expiry date: Oct 7, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

The invention relates to an organic photoactive device, especially an organic photovoltaic cell, with a contact and a countercontact as well as with an organic region that is electrically connected to the contact and the countercontact, wherein a photoactive region with a photoactive bulk heterojunction or a flat heterojunction between an electron-conducting organic material and a hole-conducting organic material is formed in the organic region and wherein the hole-conducting organic material and/or the electron-conducting organic material is formed from oligomers according to any one of the following types: conjugated acceptor-donor-acceptor oligomer (A-D-A′ oligomer) with an acceptor unit (A) and a further acceptor unit (A′) that are each connected to a donor unit (D), and conjugated donor-acceptor-donor oligomer (D-A-D′ oligomer) with a donor unit (D) and a further donor unit (D′) that are each connected to an acceptor unit (A).