Impact of substrate-graphene interaction on transport properties of graphene

ORAL

Abstract

The silicon oxide substrate has nanoscale corrugations and charge traps, which influence the electronic propreties of graphene. We modify the substrate-graphene interaction by functionalizing the oxide. We are able to modify the chemical adhesive force as demonstrated by changes in the yield of graphene with different self-assembled monolayers prior to mechanical cleavage of graphite. We will discuss the impact of oxide functionalization on the transport properties of graphene.

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Authors

  • Jianhao Chen

    Laboratory for Physical Sciences and Department of Physics, University of Maryland, College Park, Maryland 20742, Physics Department and the Material Research Science and Engineering Center, Unversity of Maryland, College Park, MD 20742, Physics Department and the Material Research Science and Engineering Center, University of Maryland, College Park, MD 20742

  • Masa Ishigami

    Laboratory for Physical Sciences and Department of Physics, University of Maryland, College Park, Maryland 20742, University of Maryland, Physics Department and the Material Research Science and Engineering Center, Unversity of Maryland, College Park, MD 20742

  • Elba Gomar-Nadal

    Materials Research and Engineering Center, Physics Department and the Material Research Science and Engineering Center, Unversity of Maryland, College Park, MD 20742, Physics Department and Materials Research Science and Engineering Center, University of Maryland, College Park, MD 20742

  • Ellen D. Williams

    Physics Department and the Material Research Science and Engineering Center, Unversity of Maryland, College Park, MD 20742, Physics \& MRSEC UMD, U. of Maryland, College Park, Physics Department and the Material Research Science and Engineering Center, University of Maryland, College Park, MD 20742, University of Maryland, Physics Department and Materials Research Science and Engineering Center, University of Maryland, College Park, MD 20742