title: Island shape and electronic structure in diindenoperylene thin films deposited on Au(110) single crystals.
abstract: We have investigated diindenoperylene (DIP) thin films deposited on Au(110) single crystals, by using a multi-technique approach based on X-ray photoemission spectroscopy (XPS), resonant photoemission spectroscopy (RPES), near edge X-ray absorption fine structure (NEXAFS) spectroscopy, atomic force microscopy (AFM) and photoemission electron microscopy (PEEM). DIP molecules are physisorbed on gold, with image-charge screening playing the major role as an interface phenomenon. DIP thin films show Stranski-Krastanov growth mode and the structural herringbone arrangement mimics the arrangement found in DIP single crystals. These results are common with the (100) and (111) gold substrate geometries. On the contrary, the island aggregation is substrate geometry-dependent. This paves the way to exploit the degree of anisotropy in different lattice geometries as a tool for molecular patterning of inorganic surfaces, keeping the electronic structure preserved.
authors.affiliation: Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. benedetta.casu@uni-tuebingen.de.
authors.forename: Francesca
authors.initials: F
authors.lastname: Ciccullo
authors.affiliation: Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. benedetta.casu@uni-tuebingen.de.
authors.forename: Sabine A
authors.initials: SA
authors.lastname: Savu
authors.affiliation: Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. benedetta.casu@uni-tuebingen.de.
authors.forename: Mathias
authors.initials: M
authors.lastname: Glaser
authors.affiliation: Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil.
authors.forename: Maria Luiza M
authors.initials: ML
authors.lastname: Rocco
authors.affiliation: Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. benedetta.casu@uni-tuebingen.de.
authors.forename: Thomas
authors.initials: T
authors.lastname: Chassé
authors.affiliation: Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. benedetta.casu@uni-tuebingen.de.
authors.forename: M Benedetta
authors.initials: MB
authors.lastname: Casu