Electrical Transport Properties In Large Area Boron-Nitrogen-Carbon Layers

ORAL

Abstract

In this work, we present a detailed investigation of the temperature dependence of transport in thin layers of Boron Nitrogen and Carbon (BNC) and compare it with electrical transport in large area graphene. We find that the temperature dependence of resistance (5K \textless\ T \textless\ 400 K) of pure graphene shows a metallic behavior, whereas the BNC samples display an increasingly semiconducting behavior with increasing B and N concentrations. Density Functional Theory (DFT) calculations performed on pure graphene and BNC structures were in good agreement with this experimental observations. The observed temperature dependence of the electrical resistivity of BNC samples can be classified into two regimes. At higher temperatures (50K \textless\ T \textless\ 400 K), the BNC samples showed a band-gap dominated Arrhenius-like temperature dependence. At the lowest temperatures (5K \textless\ T \textless\ 50 K), the temperature dependence deviates from an activated behavior, and presents evidence for a conduction mechanism that is consistent with Mott's 2D-Variable Range Hopping (2D-VRH).

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Authors

  • Baleeswaraiah Muchharla

    Southern Illinois University Carbondale

  • Mark Neubauer

    University of Missouri-Columbia, Southern Illinois University Carbondale, Indiana University, Purdue University, Argonne National Laboratory, University of Missouri, College of Physics Science, Qingda University, Qingdao, 266071, China, Indian Institute of Science, Bangalore, India, University of Massachusetts Amherst, Iowa State University, Technical University of Denmark, University of Missouri - Columbia, University of California - San Diego, La Jolla, CA 92093, Department of Physics, University of Missouri-Columbia, Columbia, Missouri 65211, Department of Physics and Astronomy, University of Missouri-Columbia, University of Missouri, Columbia, MO, Department of Physics and Department of Biochemistry, University of Missouri, Columbia, MO 65211, Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599-3290, Univ of Missouri - Columbia, Duke University, Shanghai Jiaotong University, Ames Laboratory, U.S. DOE, Texas Center of Superconductivity and the Department of Physics, University of Houston, Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 66036, Russia, Oak Ridge National Laboratory, NIST Center for Neutron Research, MU Research Reactor, Ames Laboratory and Dep. of Physics and Astronomy, Iowa State University, AmesAmes Laboratory and Dep. of Physics and Astronomy, Iowa State University, HFIR, Oak Ridge National Laboratory, University of Illinois at Urbana-Champaign

  • Zheng Liu

    Rice University

  • Li Song

    Rice University

  • Thushari Jayasekera

    Southern Illinois University Carbondale

  • Swastik Kar

    Northeastern University

  • Robert Vajtai

    Rice University

  • Luis Balicas

    National High Magnetic Field Laboratory, Florida State University

  • Pulickel M. Ajayan

    Rice University

  • Saikat Talapatra

    Southern Illinois University Carbondale

  • Naushad Ali

    Southern Illinois University Carbondale, Southern Illinois University - Carbondale Department of Physics, Department of Physics, Southern Illinois University-Carbondale