Dresden 2017 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
HL: Fachverband Halbleiterphysik
HL 46: Transport: Molecular Electronics and Photonics (jointly with CPP, HL, MA, O)
HL 46.2: Talk
Wednesday, March 22, 2017, 09:45–10:00, HSZ 201
Single-molecule junctions with oligoynes and epitaxial graphene nanoelectrodes — •Konrad Ullmann1, Susanne Leitherer2, Maximilian Krempe3, Rik Tykwinski3, Michael Thoss2, and Heiko Weber1 — 1Lehrstuhl für Angewandte Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany — 2Institut für Theoretische Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany — 3Organische Chemie I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany
Single molecule junctions using graphene as electrode material have drawn considerable attention in recent years [1,2]. Due to their open access architecture, their transparency and robustness, they are well suited for a variety of unprecedented experiments. The electrode material graphene also allows for new anchor groups which connect the molecule to the electrode, e.g. via Pi-interaction.
We report on experiments using an oligoyne molecular wire with platinum termination, being contacted with epitaxial graphene nanoelectrodes. I-V characteristics show a linear behavior with a conductance close to the conductance quantum. Furthermore we present an experimental setup which uses electrospray ionisation to bring the molecules in contact with the graphene electrodes.
[1] K. Ullmann et al., Nano Lett. 15, 3512, 2015
[2] F. Prins et al., Nano Lett. 11, 4607, 2011