title: Post-Synthetic Decoupling of On-Surface-Synthesized Covalent Nanostructures from Ag(111).
abstract: The on-surface synthesis of covalent organic nanosheets driven by reactive metal surfaces leads to strongly adsorbed organic nanostructures, which conceals their intrinsic properties. Hence, reducing the electronic coupling between the organic networks and commonly used metal surfaces is an important step towards characterization of the true material. We demonstrate that post-synthetic exposure to iodine vapor leads to the intercalation of an iodine monolayer between covalent polyphenylene networks and Ag(111) surfaces. The experimentally observed changes from surface-bound to detached nanosheets are reproduced by DFT simulations. These findings suggest that the intercalation of iodine provides a material that shows geometric and electronic properties substantially closer to those of the freestanding network.
authors.affiliation: Department of Physics, Technische Universität München, James-Franck-Strasse 1, 85748, Garching, Germany.|Deutsches Museum, Museumsinsel 1, 80538, München, Germany.|Nanosystems-Initiative-Munich and Center for Nanoscience, Schellingstrasse 4, 80799, München, Germany.
authors.forename: Atena
authors.initials: A
authors.lastname: Rastgoo-Lahrood
authors.affiliation: Department of Physics, Chemistry and Biology, IFM Linköping University, 58183, Linköping, Sweden.
authors.forename: Jonas
authors.initials: J
authors.lastname: Björk
authors.affiliation: Department of Physics, Technische Universität München, James-Franck-Strasse 1, 85748, Garching, Germany.|Deutsches Museum, Museumsinsel 1, 80538, München, Germany.|Nanosystems-Initiative-Munich and Center for Nanoscience, Schellingstrasse 4, 80799, München, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Lischka
authors.affiliation: Department of Physics, Technische Universität München, James-Franck-Strasse 1, 85748, Garching, Germany.|Deutsches Museum, Museumsinsel 1, 80538, München, Germany.|Nanosystems-Initiative-Munich and Center for Nanoscience, Schellingstrasse 4, 80799, München, Germany.
authors.forename: Johanna
authors.initials: J
authors.lastname: Eichhorn
authors.affiliation: Department of Physics, Technische Universität München, James-Franck-Strasse 1, 85748, Garching, Germany.|Deutsches Museum, Museumsinsel 1, 80538, München, Germany.|Nanosystems-Initiative-Munich and Center for Nanoscience, Schellingstrasse 4, 80799, München, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Kloft
authors.affiliation: Department of Physics, Technische Universität München, James-Franck-Strasse 1, 85748, Garching, Germany.|Deutsches Museum, Museumsinsel 1, 80538, München, Germany.|Nanosystems-Initiative-Munich and Center for Nanoscience, Schellingstrasse 4, 80799, München, Germany.
authors.forename: Massimo
authors.initials: M
authors.lastname: Fritton
authors.affiliation: Institute for Materials Science-Multicomponent Materials, Christian-Albrechts-Universität zu Kiel, Kaiserstrasse 2, 24143, Kiel, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Strunskus
authors.affiliation: Center of Micro- & Nanochemistry & Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Strasse 2, 57068, Siegen, Germany.
authors.forename: Debabrata
authors.initials: D
authors.lastname: Samanta
authors.affiliation: Center of Micro- & Nanochemistry & Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Strasse 2, 57068, Siegen, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Schmittel
authors.affiliation: Department of Physics, Technische Universität München, James-Franck-Strasse 1, 85748, Garching, Germany.|Deutsches Museum, Museumsinsel 1, 80538, München, Germany.|Nanosystems-Initiative-Munich and Center for Nanoscience, Schellingstrasse 4, 80799, München, Germany.
authors.forename: Wolfgang M
authors.initials: WM
authors.lastname: Heckl
authors.affiliation: Department of Physics, Technische Universität München, James-Franck-Strasse 1, 85748, Garching, Germany. markus@lackinger.org.|Deutsches Museum, Museumsinsel 1, 80538, München, Germany. markus@lackinger.org.|Nanosystems-Initiative-Munich and Center for Nanoscience, Schellingstrasse 4, 80799, München, Germany. markus@lackinger.org.
authors.forename: Markus
authors.initials: M
authors.lastname: Lackinger
keywords: X-ray absorption spectroscopy; covalent networks; decoupling; scanning probe microscopy; surface chemistry