title: All-polymer bulk heterojuction solar cells with 4.8% efficiency achieved by solution processing from a co-solvent.
abstract: All-polymer solar cells with 4.8% power conversion efficiency are achieved via solution processing from a co-solvent. The observed short-circuit current density of 10.5 mA cm(-2) and external quantum efficiency of 61.3% are also the best reported in all-polymer solar cells so far. The results demonstrate that processing the active layer from a co-solvent is an important strategy in achieving highly efficient all-polymer solar cells.
authors.affiliation: Department of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington, 98195-1750, USA.
authors.forename: Taeshik
authors.initials: T
authors.lastname: Earmme
authors.forename: Ye-Jin
authors.initials: YJ
authors.lastname: Hwang
authors.forename: Selvam
authors.initials: S
authors.lastname: Subramaniyan
authors.forename: Samson A
authors.initials: SA
authors.lastname: Jenekhe
keywords: all-polymer solar cells; blend morphology; n-Type polymer; nanophase separation; organic photovoltaics; polymer/polymer blend