title: Interplay of solvent additive concentration and active layer thickness on the performance of small molecule solar cells.
abstract: A relationship between solvent additive concentration and active layer thickness in small-molecule solar cells is investigated. Specifically, the additive concentration must scale with the amount of semiconductor material and not as absolute concentration in solution. Devices with a wide range of active layers with thickness up to 200 nm can readily achieve efficiencies close to 6% when the right concentration of additive is used.
authors.affiliation: Materials Department, University of California, Santa Barbara, CA, 93106, USA.
authors.forename: John A
authors.initials: JA
authors.lastname: Love
authors.forename: Samuel D
authors.initials: SD
authors.lastname: Collins
authors.forename: Ikuhiro
authors.initials: I
authors.lastname: Nagao
authors.forename: Subhrangsu
authors.initials: S
authors.lastname: Mukherjee
authors.forename: Harald
authors.initials: H
authors.lastname: Ade
authors.forename: Guillermo C
authors.initials: GC
authors.lastname: Bazan
authors.forename: Thuc-Quyen
authors.initials: TQ
authors.lastname: Nguyen
mesh_terms: D002722:Chlorobenzenes / Q000737:chemistry; D011211:Electric Power Supplies; D004867:Equipment Design; D004952:Esters / Q000737:chemistry; D016014:Linear Models; D018625:Microscopy, Atomic Force; D015394:Molecular Structure; D009795:Octanes / Q000737:chemistry; D055668:Photochemical Processes; D012666:Semiconductors; D012993:Solar Energy; D012996:Solutions; D012997:Solvents / Q000737:chemistry*; D013830:Thiadiazoles / Q000737:chemistry
chemical_list: D002722:Chlorobenzenes; D004952:Esters; D009795:Octanes; D012996:Solutions; D012997:Solvents; D013830:Thiadiazoles; C031294:chlorobenzene
keywords: R-SoXS; pc-AFM; small molecule; solar cell