Researchers of the Electronic Properties of Materials Group at the University of Vienna have now paved the way for the integration of graphene into the current silicide based technology. They have published their results in the new open access journal of the Nature Publishing group, Scientific Reports.
The above images were taken with the spectroscopy method ARPES while NiSi was formed under the graphene layer. In the final image (d) scientists can identify a particular spectrum (the linear Dirac-like spectrum of grapheme electrons) indicating that the graphene interacts only weakly with the metal silicides and therefore preserves its unique properties.(Copyright: Vilkov et al., Sci. Rep. 2013, DOI: 10.1038/srep02168)
The unique properties of graphene such as its incredible strength and, at the same time, its little weight have raised high expectations in modern material science. Graphene, a two-dimensional crystal of carbon atoms packed in a honeycomb structure, has been in the focus of intensive research which led to a Nobel Prize of Physics in 2010. One major challenge is to successfully integrate graphene into the established metal-silicide technology. Scientists from the University of Vienna and their co-workers from research institutes in Germany and Russia have succeeded in fabricating a novel structure of high-quality metal silicides all nicely covered and protected underneath a graphene layer. These two-dimensional sheets are as thin as single atoms.Following Einstein's footsteps
The work on graphene related materials is financed by a Marie Curie fellowship of the European commission and an APART fellowship of the Austrian Academy of Sciences.Original publication:
Michaela Wein | Universität Wien
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