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Research

Aim of the Research Training Group is to combine the existing scientific expertise within the physics and chemistry departments of the University of Regensburg to establish a consortium able to excel in the emerging field of carbon-based nanoelectronics. Focus will be on nanodevices based on "novel materials" as single and multi-layer graphene (first isolated in 2004), on suspended or functionalized carbon nanotubes and on single aromatic molecules.

The research projects reflect the cutting edge of the research on carbon-based nanostructures: On the one hand the electronic properties of two-dimensional graphene are still largely unknown and hence our proposed theoretical and experimental investigation of such features are of paramount importance. Also the nanopatterning and functionalization of graphene and the theoretical investigation of the so-obtained structures is in its infancy. Carbon nanotubes, in contrast, have been intensively investigated during the last fifteen years. Despite this, the experimental realization and theoretical investigation of quantum dots devices based on single-walled carbon nanotubes is very recent and only few studies exist on transport properties of suspended carbon nanotube quantum dots. Transport experiments on double-walled carbon nanotubes have not been reported yet. Finally, only few groups in the world are able to perform the low temperature STM experiments on molecules on insulating substrates proposed here.

The planned use of a combined STM-AFM microscope working in ultra high vacuum to investigate the transition from graphene to graphite is so far unique.