Dresden 2026 – scientific programme
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O: Fachverband Oberflächenphysik
O 8: Nanostructures at surfaces:1D, 2D, networks I
O 8.7: Talk
Monday, March 9, 2026, 12:15–12:30, WILL/A317
On-Surface Synthesis on Oxide — •Sonja Bohl1, Kassandra Zoltner1, Leonard Neuhaus1, Stefan R. Kachel1, Agustina Heredia2, Cissie Slopianka1, Sophie Schäfer1, Lisa Arnold1, Doris Grumelli2, Sabine Wenzel1, and J. Michael Gottfried1 — 1Fachbereich Chemie, Universität Marburg — 2INIFTA, Universidad Nacional de La Plata
Oxide surfaces offer the advantage of weak molecule-substrate interactions, enabling a more direct and undistorted probing of the properties of adsorbed molecules compared to metal substrates. However, the reduced adsorption energies represent a central challenge for on-surface synthesis, requiring adjusted precursor strategies to prevent premature desorption from the oxide substrates. In this work, we explore approaches to enable on-surface reactions on thin-film oxides and well-defined bulk oxides. While various nano-carbon structures have previously been synthesized on metal surfaces, we investigate whether analogous processes can be realized on oxides. Furthermore, we examine how metal-organic nanostructures interact with bulk oxide surfaces and whether the substrate can induce changes in their coordination environment. Our methodology combines on-surface synthesis with scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and temperature-programmed desorption (TPD).
Keywords: oxides; on-surface synthesis; scanning tunneling microscopy; X-ray photoelectron spectroscopy; molecule-substrate interaction