title: Increased open-circuit voltage of organic solar cells by reduced donor-acceptor interface area.
authors.affiliation: Department of materials science and engineering, Stanford University, Stanford, CA94305, USA; Institut für Angewandte Photophysik, Technische Universität Dresden, George-Bähr-Straße 1, 01069, Dresden, Germany.
authors.forename: Koen
authors.initials: K
authors.lastname: Vandewal
authors.forename: Johannes
authors.initials: J
authors.lastname: Widmer
authors.forename: Thomas
authors.initials: T
authors.lastname: Heumueller
authors.forename: Christoph J
authors.initials: CJ
authors.lastname: Brabec
authors.forename: Michael D
authors.initials: MD
authors.lastname: McGehee
authors.forename: Karl
authors.initials: K
authors.lastname: Leo
authors.forename: Moritz
authors.initials: M
authors.lastname: Riede
authors.forename: Alberto
authors.initials: A
authors.lastname: Salleo
keywords: bulk heterojunction; charge-transfer state; open-circuit voltage; organic solar cells