Activation Energy Paths for Graphene Nucleation and Growth on Cu

We study the physicochemical mechanisms underlying the nucleation and growth kinetics of graphene on copper, providing new insights necessary for the engineering synthesis of wafer-scale single crystals

HoKwon Kim; Cecilia Mattevi; M. Reyes Calvo; Jenny C. Oberg; Luca Artiglia; Stefano Agnoli; Cyrus F. Hirjibehedin; Manish Chhowalla; Eduardo Saiz

2012

Scholarcy highlights

  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • The synthesis of wafer-scale single crystal graphene remains a challenge toward the utilization of its intrinsic properties in electronics
  • The large-area chemical vapor deposition of graphene has yielded a polycrystalline material, where grain boundaries are detrimental to its electrical properties
  • Graphene arises from the crystallization of a supersaturated fraction of carbon-adatom species, and its nucleation density is the result of competition between the mobility of the carbon-adatom species and their desorption rate
  • The growth-limiting step was found to be the attachment of carbon-adatom species to the graphene edges, which was independent of the Cu crystalline orientation
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