Regensburg 2016 – scientific programme
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O: Fachverband Oberflächenphysik
O 26: Oxides and Insulator Surfaces: Adsorption
O 26.5: Poster
Monday, March 7, 2016, 18:15–20:30, Poster E
Self-assembly of polycyclic aromatic hydrocarbons on bulk MgO(001) — •Tim Sander1, Maximilian Ammon1, Natalie Hammer2, Milan Kivala2, and Sabine Maier1 — 1Department of Physics, FAU Erlangen-Nürnberg, Germany — 2Department of Chemistry and Pharmacy, FAU Erlangen-Nürnberg, Germany
MgO is a wide band gap insulator and a prototype oxide material with interesting catalytic properties. First, we report on the surface preparation and characterization of clean MgO(001) surfaces based on atomically resolved non-contact atomic force microscopy (nc-AFM) measurements. The MgO surfaces were cleaved in ultra-high vacuum using a home-built cleaving device and annealed prior to imaging to compensate surface charges. Second, we discuss the self-assembly of halogen-substituted bridged triphenylamine derivatives on MgO(001). Molecularly resolved nc-AFM images were performed to analyze the adsorption geometry and sites of the molecules.