title: Solution-Processable n-Type Organic Semiconductors Based on Angular-Shaped 2-(12H-Dibenzofluoren-12-ylidene)malononitrilediimide.
abstract: The angular-shaped n-type semiconductors 2-(12H-dibenzofluoren-12-ylidene)malononitrilediimide 2a and 2b were successfully designed, synthesized, and fully characterized by optical absorption and fluorescence, cyclic voltammetry, X-ray crystal structure analysis, XRD, and OFET device performance. The varying alkyl chain lengths of 2a and 2b caused different molecular orientations with respect to the substrate. Thus, 2a presents an electron mobility of 0.01 cm(2) V(-1) s(-1), whereas 2b resulted in poor device performance with a much lower electron mobility of 5 × 10(-4) cm(2) V(-1) s(-1).
authors.affiliation: †Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: Debin
authors.initials: D
authors.lastname: Xia
authors.affiliation: †Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Marszalek
authors.affiliation: †Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Li
authors.affiliation: †Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: Xin
authors.initials: X
authors.lastname: Guo
authors.affiliation: †Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Baumgarten
authors.affiliation: †Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.|‡Department of Molecular Physics, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Pisula
authors.affiliation: †Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: Klaus
authors.initials: K
authors.lastname: Müllen