cfaed Seminar Series

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cfAED Seminar Series

Prof. Carmen Herrmann , Universität Hamburg, AK Theoretical Chemistry

Controlling and understanding conductance in molecular junctions

12.02.2015 (Thursday) , 16:40 - 17:40
TU Dresden, Müllerbau, room MÜL/ELCH , Bergstrasse 66 b , 01069 Dresden

Photo: Universität Hamburg

Link to Prof. Carmen Herrmann's page

Show lecture location on TUD Campus Navigator: Müllerbau, room MÜL/ELCH

 

Abstract

Molecular conductance is measured in different experimental setups such as scanning tunneling microscopes (STMs), molecular break junctions, and nanoparticle arrays. The motivation behind these experiments is not only studying potential reproducible nanoscale building blocks for electronics or spintronics, but also learning about molecules under unusual conditions.

We show how theory can help understanding and controlling molecular conductance based on several examples from our research, ranging from a conceptual comparison of conductance and exchange spin coupling, to a study on switching conductance by protonation, to a simulation of combined STM/atomic-force microscopy experiment on platform-mounted porphyrin complexes.

  • J. Proppe, C. Herrmann, J. Comput. Chem., early view, DOI 10.1002/jcc.23781.
  • C. Herrmann, J. Elmisz, Chem. Commun. 49, 2013, 10456-10458.
  • H. Schlicke, C. Herrmann, Controlling molecular conductance: switching off π sites through protonation, ChemPhysChem 15, 2014, 4011-4018.
  • N. Hauptmann, L. Groß, K. Buchmann, K. Scheil, C. Schütt, F. Otte, R.
  • Herges, C. Herrmann, R. Berndt, New J. Phys., accepted.

 

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