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).

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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