Synthesis of Single Crystal Graphene by Chemical Vapor Deposition.

ORAL

Abstract

Graphene growth by chemical vapor deposition (CVD) has attracted great attention since CVD is a relatively simple method that provides for very large-area graphene films [1]. However, the relatively low carrier mobility, issues associated with graphene transfer to a substrate, and the multigrain structure observed in CVD graphene, suggest the need for further research [2]. Here, we present results of a study of surface modified CVD growth of graphene on copper foil and limiting the nucleation using various methods. Thus, we detail the effect of controlling the nucleation and the surface properties of the starting copper foil on the size and the quality of relatively large sized single crystal graphene flakes. The graphene layers are characterized by various methods and the results are reported. [1] Q. Yu et al., Nature Materials 10, 443 (2011). [2] K. S. Novoselov et al., Nature 490, 192 (2012).

*[a] U.S. Department of Energy, Office of Basic Energy Sciences, Material Sciences and Engineering division under the Grant No. DE-SC0001762.
[b] H.C.L., microwave/millimeter/terahertz study, and 2D material study have been funded by Army Research Office under W911NF-14-2-0076 and W911NF-15-1-0433.

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Presenters

  • Sajith Withanage

    • Physics & Astronomy, Georgia State University

Authors

  • Sajith Withanage

    • Physics & Astronomy, Georgia State University

  • Rasanga Samaraweera

    • Physics & Astronomy , Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State Univ
    • Department of Physics, Georgia State University

  • Tharanga Nanayakkara

    • Physics & Astronomy , Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State Univ
    • Physics and Astronomy , Georgia State University
    • Department of Physics, Georgia State University

  • U. Kushan Wijewardena

    • Physics & Astronomy , Georgia State University
    • Physics & Astronomy, Georgia State University
    • Physics and Astronomy , Georgia State University
    • Physics and Astronomy, Georgia State University, 25 Park Place, #605, Georgia State University

  • Annika Kriisa

    • Physics & Astronomy , Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State Univ
    • Physics and Astronomy , Georgia State University
    • Department of Physics, Georgia State University
    • Physics and Astronomy, Georgia State University, 25 Park Place, #605, Georgia State University
    • Dept. of Physics and Astronomy, Georgia State Univ

  • Ramesh Mani

    • Physics & Astronomy , Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State Univ
    • Physics and Astronomy , Georgia State University
    • Department of Physics, Georgia State University
    • Physics and Astronomy, Georgia State University, 25 Park Place, #605, Georgia State University
    • Dept. of Physics and Astronomy, Georgia State Univ
    • Georgia State University