Dresden 2026 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 69: Nanostructures at surfaces:1D, 2D, networks – Poster
O 69.8: Poster
Mittwoch, 11. März 2026, 18:00–20:00, P2
Bottom-up fabrication of molecular islands utilizing an SPM-based manipulation approach — •Mong-Wen Gu1,2, Ruslan Temirov1,2,3, F. Stefan Tautz1,2,4, and Christian Wagner1,2 — 1Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, Jülich, Germany — 2Jülich Aachen Research Alliance, Fundamentals of Future Information Technology, Germany — 3II. Physikalisches Institut, Universität zu Köln, Cologne, Germany — 4Institut für Experimentalphysik IV A, RWTH Aachen, Aachen, Germany
The scanning probe microscope (SPM) allows single molecules to be manipulated with very high precision. SPM-based manipulation provides an opportunity for the fabrication of nanostructures through bottom-up construction. One critical challenge is using molecules other than conventional CO molecules as building blocks. Here, we explore the parameter space of the manipulation process in which a single PTCDA (3,4,9,10-perylene tetracarboxylic dianhydride) molecule bridges the SPM junction. We demonstrate the bottom-up construction of artificial PTCDA islands on Ag(111). These islands reproduce the native monolayer lattice structure, can be customized in size and shape and thus allow studying their electronic properties in a systematic way.
Keywords: scanning probe microscopy; molecular manipulation