Berlin 2024 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 51: Focus Session: Molecular Nanostructures on Surfaces: On-Surface Synthesis and Single-Molecule Manipulation II
O 51.9: Vortrag
Mittwoch, 20. März 2024, 17:15–17:30, HE 101
A Challenge Human vs Machine: Building a Nanopattern of Unknown Adsorbates — •Bernhard Ramsauer1, Grant Simpson1, Johannes J. Cartus1, Leonhard Grill2, and Oliver T. Hofmann2 — 1Institute of Solid State Physics, NAWI Graz, Graz University of Technology, Graz, 8010, Austria — 2Department of Physical Chemistry, Institute of Chemistry, NAWI Graz, University Graz, Graz, 8010, Austria
Scanning probe microscopes give us the possibility to precisely control the position and orientation of single molecules, thus unlocking the possibility to fabricate quantum-structures with novel properties. However, interaction processes at the nanoscale are stochastic, and the motion of molecules is often unintuitive and hard to predict even for human experts.
In this work we present an artificial intelligence challenging a human expert to build a pattern of unknown molecules as fast as possible. The challengers had one week each to learn the optimal manipulation parameters and to build the pre-defined nanopattern. In the building process every type of manipulation is allowed. Within this week one can attempt building the nanopattern as often as possible but the winner is determined by the shortest assembly time.
Keywords: nanofabrication; machine learning; molecular manipulation; STM; AI