Dresden 2020 – scientific programme

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O: Fachverband Oberflächenphysik

O 64: Organic Molecules on Inorganic Substrates IV: Adsorption, Growth and Networks

O 64.12: Talk

Wednesday, March 18, 2020, 13:30–13:45, TRE Phy

Ultrathin ionic liquid layers and organic molecules on metal surfaces — •Stephen Massicot, Matthias Lexow, Florian Maier, and Hans-Peter Steinrück — Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen

Ionic liquids (ILs) are salts with melting points below 100°C and extreme low vapor pressure. Due to these properties, they have been studied extensively as promising candidates for various thin film applications, e.g in the fields of sensors, electrochemistry and catalysis. The interplay of ILs with organic molecules at metal surfaces in this context is highly important to understand and predict the behavior of these thin films applications.

In this study, we deposit ultrathin imidazolium IL layers and porphyrins by in-situ physical vapor deposition on a Ag(111) surface as model support. The structure and composition of the film at the solid and at the vacuum interface is studied by angle-resolved and temperature-programmed X-ray photoelectron spectroscopy on the molecular scale.

Supported by the European Research Council (ERC) through an Advanced Investigator Grant to HPS.