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O: Fachverband Oberflächenphysik
O 37: Scanning Probe Techniques
O 37.13: Poster
Dienstag, 17. März 2015, 18:15–21:00, Poster A
3D structure determination of individual molecules by means of Atomic Force Microscopy — •Florian Albrecht1, Coral Herranz-Lancho2, Niko Pavliček1,3, Mario Ruben2, and Jascha Repp1 — 1Institute of Experimental and Applied Physics, University of Regensburg, 93040 Regensburg, Germany — 2Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany — 3IBM Research - Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland
Functionalizing the tip of an Atomic Force Microscopy (AFM) with a single CO molecule has been shown to be a powerful tool to determine the geometric structure of individual molecules [1-3]. So far this technique was applied to molecules with only little deviations from a planar shape. We performed AFM measurements in a low temperature combined scanning tunneling and atomic force microscope with functionalized tips. We extract the geometric structure of a non-planar molecule from a 3D data set [4, 5]. Thermal annealing of the sample leads to an on-surface reaction with different products, the identification of which is exploited to support the structure assignment of the 3D molecular structure of the reactant [2].
[1] L. Gross, et al., Science 325, 1110 (2009)
[2] D. G. de Oteyza, et al., Science 340, 1434 (2013)
[3] N. Pavliček, et al., Phys. Rev. Lett. 108, 086101 (2012).
[4] F. Mohn, et al., Appl. Phys. Lett. 99, 53106 (2011)
[5] B. Schuler, et al., Phys. Rev. Lett. 111, 106103 (2013)