Electronic decoupling of an epitaxial graphene monolayer by gold intercalation

Isabella Gierz; Takayuki Suzuki; Dong Su Lee; Benjamin Krauss; Christian Riedl; Ulrich Starke; Hartmut Höchst; Jurgen H. Smet; Christian R. Ast; Klaus Kern

doi:10.1103/PhysRevB.81.235408

Electronic decoupling of an epitaxial graphene monolayer by gold intercalation

Materials Science 2015-05-18 v1

Authors: Isabella Gierz , Takayuki Suzuki , Dong Su Lee , Benjamin Krauss , Christian Riedl , Ulrich Starke , Hartmut Höchst , Jurgen H. Smet , Christian R. Ast , Klaus Kern

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Abstract

The application of graphene in electronic devices requires large scale epitaxial growth. The presence of the substrate, however, usually reduces the charge carrier mobility considerably. We show that it is possible to decouple the partially sp3-hybridized first graphitic layer formed on the Si-terminated face of silicon carbide from the substrate by gold intercalation, leading to a completely sp2-hybridized graphene layer with improved electronic properties.

Keywords

graphene gold intercalation epitaxial growth electronic decoupling silicon carbide sp2 hybridization

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@article{arxiv.1003.2355,
  title  = {Electronic decoupling of an epitaxial graphene monolayer by gold intercalation},
  author = {Isabella Gierz and Takayuki Suzuki and Dong Su Lee and Benjamin Krauss and Christian Riedl and Ulrich Starke and Hartmut Höchst and Jurgen H. Smet and Christian R. Ast and Klaus Kern},
  journal= {arXiv preprint arXiv:1003.2355},
  year   = {2015}
}

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7 pages, 4 figures, 1 table

Electronic decoupling of an epitaxial graphene monolayer by gold intercalation

Abstract

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