76 research outputs found
Graphene on metallic surfaces
The present manuscript summarizes the modern view on the problem of the
graphene–metal interaction. Presently, the close-packed surfaces of d metals
are used as templates for the preparation of highly-ordered graphene layers.
Different classifications can be introduced for these systems: graphene on
lattice-matched and graphene on lattice-mismatched surfaces where the
interaction with the metallic substrate can be either “strong” or “weak”. Here
these classifications, with the focus on the specific features in the
electronic structure in all cases, are considered on the basis of large amount
of experimental and theoretical data, summarized and discussed. The
perspectives of the graphene–metal interfaces in fundamental and applied
physics and chemistry are pointed out
Growth and electronic structure of graphene on semiconducting Ge(110)
The direct growth of graphene on semiconducting or insulating substrates
might help to overcome main drawbacks of metal-based synthesis, like metal-atom
contaminations of graphene, transfer issues, etc. Here we present the growth of
graphene on n-doped semiconducting Ge(110) by using an atomic carbon source and
the study of the structural and electronic properties of the obtained
interface. We found that graphene interacts weakly with the underlying Ge(110)
substrate that keeps graphene's electronic structure almost intact promoting
this interface for future graphene-semiconductor applications. The effect of
dopants in Ge on the electronic properties of graphene is also discussed.Comment: submitted on 06.04.201
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