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Synthesis and electronic properties of chemically functionalized graphene on metal surfaces

Authors/others:Grüneis, Alexander
Abstract:A review on the electronic properties, growth and functionalization of graphene on metals is presented. Starting from the derivation of the electronic properties of an isolated graphene layer using the nearest neighbor tight-binding (TB) approximation for pi and sigma electrons, the TB model is then extended to third-nearest neighbors and interlayer coupling. The latter is relevant to few-layer graphene and graphite. Next, the conditions under which epitaxial graphene can be obtained by chemical vapor deposition are reviewed with a particular emphasis on the Ni(111) surface. Regarding functionalization, I first discuss the intercalation of monolayer Au into the graphene/Ni(111) interface, which renders graphene quasi-free-standing. The Au intercalated quasi-free-standing graphene is then the basis for chemical functionalization. Functionalization of graphene is classified into covalent, ionic and substitutional functionalization. As archetypical examples for these three possibilities I discuss covalent functionalization by hydrogen, ionic functionalization by alkali metals and substitutional functionalization by nitrogen heteroatoms.
Number of pages:14
Date of publication:2013
Journal title:Journal of Physics: Condensed Matter
Digital Object Identifier (DOI):http://dx.doi.org/10.1088/0953-8984/25/4/043001
Bibliographical note:***232387*** WOS:000313101200001
Publication Type:Review
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