Berlin 2018 – scientific programme
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O: Fachverband Oberflächenphysik
O 74: Nanostructures at surfaces: Other aspects
O 74.5: Talk
Wednesday, March 14, 2018, 17:45–18:00, MA 141
Comparison of the switching behavior of 2D and 3D single molecules induced be mean of tip position and bias actions — •Loïc Mougel1,2, Lukas Gerhard1, Adam Gorczynski1, Marcel Mayor1,3, and Wulf Wulfhekel1,2 — 1Institut für Nanotechnologie, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany — 2Physikaliches Institut, Karlsruhe Institute of Technology, 76131 Kasrlsruhe, Germany — 3Department of Chemistry, University of Basel, St Johanns-Ring 19, 4056 Basel, Switzerland
Switching a molecule between different metastable states is interesting with regard to future applications in the field of molecular electronics.
We used scanning tunneling microscopy (STM) at temperature around 5K to study the switching behavior of individual tripodal organic molecules with a Tetraphanylmethane or a Triazine core within islands of different controlled order.
The molecules with different cores are three-dimensional or planar. They were deposited with a spraying and/or evaporation method on clean Au(111) surfaces. We were able to induce switching processes which allowed us to study the correlation of the switching behavior of neighboring molecules in threefold symmetric arrangement.