Single-Molecule Junctions with Epitaxial Graphene Nanoelectrodes

Ullmann K, Brana Coto P, Leitherer S, Molina-Ontoria A, Martin N, Thoss M, Weber HB (2015)

Publication Status: Published

Publication Type: Journal article

Publication year: 2015


Publisher: American Chemical Society

Book Volume: 15

Pages Range: 3512-3518

DOI: 10.1021/acs.nanolett.5b00877


On the way to ultraflat single-molecule junctions with transparent electrodes, we present a fabrication scheme based on epitaxial graphene nanoelectrodes. As a suitable molecule, we identified a molecular wire with fullerene anchor groups. With these two components, stable electrical characteristics could be recorded, Electrical measurements show that single-molecule junctions with graphene and with gold electrodes display a striking agreement. This motivated a hypothesis that the differential Conductance spectra are rather insensitive to the electrode material. It is further corroborated by the assignment of asymmetries and spectral features to internal molecular,degrees of freedom. The demonstrated open access graphene electrodes and the electrode-insensitive, molecules provide a model system that will allow for a thorough investigation of an individual single,molecule contact with additional probes.

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Ullmann, K., Brana Coto, P., Leitherer, S., Molina-Ontoria, A., Martin, N., Thoss, M., & Weber, H.B. (2015). Single-Molecule Junctions with Epitaxial Graphene Nanoelectrodes. Nano Letters, 15, 3512-3518.


Ullmann, Konrad, et al. "Single-Molecule Junctions with Epitaxial Graphene Nanoelectrodes." Nano Letters 15 (2015): 3512-3518.

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