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.

*This work is partially supported by the Laboratory for Physical Sciences at Unversity of Maryland and the DCI postdoctoral fellowship.

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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