title: STM tip-assisted engineering of molecular nanostructures: PTCDA islands on Ge(001):H surfaces.
abstract: Islands composed of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) molecules are grown on a hydrogen passivated Ge(001):H surface. The islands are studied with room temperature scanning tunneling microscopy and spectroscopy. The spontaneous and tip-induced formation of the top-most layer of the island is presented. Assistance of the scanning probe seems to be one of the factors that facilitate and speed the process of formation of the top-most layer.
authors.affiliation: Research Centre for Nanometer-scale Science and Advanced Materials (NANOSAM), Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland.
authors.forename: Amir A
authors.initials: AA
authors.lastname: Ahmad Zebari
authors.affiliation: Research Centre for Nanometer-scale Science and Advanced Materials (NANOSAM), Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland.
authors.forename: Marek
authors.initials: M
authors.lastname: Kolmer
authors.affiliation: Research Centre for Nanometer-scale Science and Advanced Materials (NANOSAM), Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland.
authors.forename: Jakub S
authors.initials: JS
authors.lastname: Prauzner-Bechcicki
keywords: molecular nanostructures; scanning tunneling microscopy; tip-induced processes