title: Hierarchical interactions and their influence upon the adsorption of organic molecules on a graphene film.
abstract: The competition between intermolecular interactions and lateral variations in the molecule-substrate interactions has been studied by scanning tunneling microscopy (STM), comparing the phase formation of (sub)monolayers of the organic molecule 2,4'-BTP on buckled graphene/Ru(0001) and Ag(111) oriented thin films on Ru(0001). On the Ag films, the molecules form a densely packed 2D structure, while on graphene/Ru(0001), only the areas between the maxima are populated. The findings are rationalized by a high corrugation in the adsorption potential for 2,4'-BTP molecules on graphene/Ru(0001). These findings are supported by temperature programmed desorption (TPD) experiments and theoretical results.
authors: Institute of Surface Chemistry and Catalysis, Ulm University, D-89069 Ulm, Germany.
authors: Michael
authors: M
authors: Roos
authors: Daniela
authors: D
authors: Künzel
authors: Benedikt
authors: B
authors: Uhl
authors: Hsin-Hui
authors: HH
authors: Huang
authors: Otavio
authors: O
authors: Brandao Alves
authors: Harry E
authors: HE
authors: Hoster
authors: Axel
authors: A
authors: Gross
authors: R Jürgen
authors: RJ
authors: Behm