title: An N-ethylated barbituric acid end-capped bithiophene as an electron-acceptor material in fullerene-free organic photovoltaics.
abstract: A new evaporable electron acceptor material for organic photovoltaics based on N-ethyl barbituric acid bithiophene (EBB) has been demonstrated. Bilayer devices fabricated with this non-fullerene acceptor and boron subphthalocyanine chloride (SubPc) donor produce power conversion efficiencies as high as 2.6% with an extremely large open-circuit voltage approaching 1.4 V.
authors.affiliation: Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK. p.j.sullivan@warwick.ac.uk.
authors.forename: Paul
authors.initials: P
authors.lastname: Sullivan
authors.forename: Gavin E
authors.initials: GE
authors.lastname: Collis
authors.forename: Luke A
authors.initials: LA
authors.lastname: Rochford
authors.forename: Junior Ferreira
authors.initials: JF
authors.lastname: Arantes
authors.forename: Peter
authors.initials: P
authors.lastname: Kemppinen
authors.forename: Tim S
authors.initials: TS
authors.lastname: Jones
authors.forename: Kevin N
authors.initials: KN
authors.lastname: Winzenberg