title: Solution processed polymer tandem solar cell using efficient small and wide bandgap polymer:fullerene blends.
abstract: Solution processed polymer tandem solar cells that combine wide and small bandgap absorber layers reach a power conversion efficiency of 7% in a series configuration. This represents a 20% increase compared to the best single junction cells made with the individual active layers and shows that the tandem configuration reduces transmission and thermalization losses in converting sunlight.
authors.affiliation: Molecular Materials and Nanosystems, Eindhoven University of Technology, Eindhoven, The Netherlands.
authors.forename: Veronique S
authors.initials: VS
authors.lastname: Gevaerts
authors.forename: Alice
authors.initials: A
authors.lastname: Furlan
authors.forename: Martijn M
authors.initials: MM
authors.lastname: Wienk
authors.forename: Mathieu
authors.initials: M
authors.lastname: Turbiez
authors.forename: René A J
authors.initials: RA
authors.lastname: Janssen
mesh_terms: D004553:Electric Conductivity; D011211:Electric Power Supplies; D037741:Fullerenes / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D012993:Solar Energy; D012996:Solutions; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D037741:Fullerenes; D011108:Polymers; D011758:Pyrroles; D012996:Solutions; D013876:Thiophenes