Peter Sutter, Cristian V. Ciobanu and Eli Sutter Real-Time Microscopy of Graphene Growth on Epitaxial Metal Films: Role of Template Thickness and Strain Small 8
Graphene growth on epitaxial transition metal films is studied as a method for the scalable synthesis of transferable graphene. Real-time microscopy on epitaxial Ru films on sapphire shows high-quality graphene growth in macroscopic domains to full surface coverage. By analyzing graphene nucleation and growth, two powerful approaches are identified for controlling graphene growth on metals with high C solubility: i) limiting the template thickness, and ii) tuning the interstitial C solubility via strain.
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