Impact of Atomic Hydrogen Adsorption on Transport Properties of Graphene

ORAL

Abstract

We have measured transport properties of graphene as a function of surface coverage by atomic hydrogen in ultra high vacuum. Hydrogen adsorption is reversible at moderate temperatures and alters electronic properties of graphene at atomic scale. We will discuss dependence of minimum conductivity and field-effect carrier mobility on the density of adsorbed hydrogen.

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Authors

  • Jyoti Katoch

    Department of Physics, University of Central Florida

  • Jian-Hao Chen

    University of Maryland, College Park, Department of Physics and University of Maryland Materials Research Science and Engineering Center, University of Maryland, College Park, MD 20742, Dept of Physics, Center for Nanophysics and Advanced Materials, and Materials Research Science and Engineering Center, Univ. of Maryland, College Park, University of Maryland, Department of Physics, University of Maryland, Materials Research Science and Engineering Center, Center for Nanophysics and Advanced Materials, Dept of Physics, Univ. of Maryland, College Park, MD

  • Masahiro Ishigami

    Department of Physics, University of Central Florida