title: Quasi-one-dimensional cyano-phenylene aggregates: Uniform molecule alignment contrasts varying electrostatic surface potential.
abstract: The epitaxial growth of the mono-functionalized para-quaterphenylene molecule CNHP4 on muscovite mica is investigated. The vacuum deposited molecules aggregate into nanofibers of varying morphology. Due to muscovite's cm symmetry, almost mutually parallel fibers grow. Polarized light microscopy together with X-ray diffraction resolves the projected orientation of the molecules on the substrate surface and within the fibers. Several different contact planes with the substrate are detected. For all of them, the molecules orient with their long molecule axis approximately perpendicular to the grooved muscovite direction, so that the alignment of the molecules on the substrate is uniform. Kelvin probe force microscopy finds vastly different electrostatic properties of different fiber types and facets.
authors.affiliation: NanoSyd, Mads Clausen Institute, University of Southern Denmark, 6400 Sønderborg, Denmark.
authors.forename: Frank
authors.identifier: 0000000262286839
authors.initials: F
authors.lastname: Balzer
authors.affiliation: Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
authors.forename: Roland
authors.initials: R
authors.lastname: Resel
authors.affiliation: Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany.
authors.forename: Arne
authors.initials: A
authors.lastname: Lützen
authors.affiliation: Energy and Semiconductor Research Laboratory, Institute of Physics, University of Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129 Oldenburg, Germany.
authors.forename: Manuela
authors.identifier: 0000000201082998
authors.initials: M
authors.lastname: Schiek