Fluoro-Substituted n-Type Conjugated Polymers for Additive-Free All-Polymer Bulk Heterojunction Solar Cells with High Power Conversion Efficiency of 6.71

Adv Mater. 2015 Jun 3;27(21):3310-7. doi: 10.1002/adma.201501214. Epub 2015 Apr 20.

Abstract

Fluorinated n-type conjugated polymers are used as efficient electron acceptor to demonstrate high-performance all-polymer solar cells. The exciton generation, dissociation, and charge-transporting properties of blend films are improved by using these fluorinated n-type polymers to result in enhanced photocurrent and suppressed charge recombination.

Keywords: all-polymer solar cells; conjugated polymers; fluorination; naphthalene di-imide.