Scanning Tunneling Microscope (STM) Study of B-doped Monolayer Graphene

ORAL

Abstract

Chemical doping is a promising technique to tailor the electronic properties of graphene. Here we focus on an atomic scale characterization of Boron-doped monolayer graphene sheets using primarily STM, assisted by Raman Spectroscopy and X-ray Absorption Spectroscopy (XAS). We will show in topography that there are two major structures that result from B-doping, and in spectroscopy that each of these structures plays different roles in modifying the electronic properties of graphene. Raman Spectroscopy and XAS provide complementary information about the nature of the B-C bonds in the sample.

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Authors

  • Liuyan Zhao

    • Columbia University

  • Mark Levendorf

    • Cornell University

  • Christopher Gutierrez

    • Columbia University

  • Theanne Schiros

    • Columbia University

  • George Flynn

    • Columbia University

  • Jiwoong Park

    • Cornell University

  • Abhay Pasupathy

    • Columbia University