title: Hole Mobility and Electron Injection Properties of D-A Conjugated Copolymers with Fluorinated Phenylene Acceptor Units.
abstract: A novel wide-gap conjugated polymer PhF2,5 (Eg= 1.9 eV) is designed to contain alternating cyclopentadithiophene and difluorophenylene unit with the goal of favoring unipolar organic field effect transistor characteristics. The higher lowest unoccupied molecular orbital energy of PhF2,5 increases the barrier to electron injection, leading to unipolar transport and higher on/off ratios, without sacrificing desirable high hole mobilities.
authors.affiliation: Center for Polymer and Organic Solids, Mitsubishi Chemical Center for Advanced Materials, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA.
authors.forename: Ming
authors.initials: M
authors.lastname: Wang
authors.affiliation: Center for Polymer and Organic Solids, Mitsubishi Chemical Center for Advanced Materials, Materials Department, University of California, Santa Barbara, CA, 93106, USA.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Ford
authors.affiliation: Center for Polymer and Organic Solids, Mitsubishi Chemical Center for Advanced Materials, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA.
authors.forename: Alexander T
authors.initials: AT
authors.lastname: Lill
authors.affiliation: Center for Polymer and Organic Solids, Mitsubishi Chemical Center for Advanced Materials, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA.
authors.forename: Hung
authors.initials: H
authors.lastname: Phan
authors.affiliation: Center for Polymer and Organic Solids, Mitsubishi Chemical Center for Advanced Materials, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA.
authors.forename: Thuc-Quyen
authors.initials: TQ
authors.lastname: Nguyen
authors.affiliation: Center for Polymer and Organic Solids, Mitsubishi Chemical Center for Advanced Materials, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA.|Center for Polymer and Organic Solids, Mitsubishi Chemical Center for Advanced Materials, Materials Department, University of California, Santa Barbara, CA, 93106, USA.
authors.forename: Guillermo C
authors.initials: GC
authors.lastname: Bazan
keywords: donor-acceptor conjugated copolymers; electron injection; fluorinated phenylenes; organic field-effect transistors; stability