title: Vibrational modes and changing molecular conformation of perfluororubrene in thin films and solution.
abstract: We investigate the vibrational properties of perfluororubrene (PF-RUB) in thin films on silicon wafers with a native oxide layer as well as on silicon wafers covered with a self-assembled monolayer and in dichloromethane solution. In comparison with computed Raman and IR spectra, we can assign the molecular modes and identify two molecular conformations with twisted and planar tetracene backbones of the molecule. Moreover, we employ Raman imaging techniques to study the morphology and distribution of the molecular conformation in PF-RUB thin films.
authors.affiliation: Institut für Angewandte Physik, Universität Tübingen, 72076 Tübingen, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Anger
authors.affiliation: Institut für Angewandte Photophysik, TU Dresden, 01069 Dresden, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Scholz
authors.affiliation: Institut für Angewandte Physik, Universität Tübingen, 72076 Tübingen, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Gerlach
authors.affiliation: Institut für Angewandte Physik, Universität Tübingen, 72076 Tübingen, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Schreiber