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We synthesized centimeter-scale single- to few-layer graphene (FLG) films via chemical vapor deposition (CVD) on Ni foils. We demonstrates that the precipitation mechanism may not be the only important mechanism in the formation of graphene by CVD in Ni system, and that controlling the cooling rate in the CVD process may not be the appropriate way to control the thickness of graphene films. In addition,...
A real-time and non-contact method using scanning electron microscopy is demonstrated for the electromechanical analysis of suspended single-walled carbon nanotubes (su-SWCNTs) to estimate the adhesive force to the supporting templates. The su-SWCNTs were directly synthesized across vertically-aligned carbon nanofibers (CNFs) with size-reduced catalytic nanoparticles encapsulated at the tips using...
A method for the synthesis of millimeter-scaled graphene films on silicon carbide substrates at low temperatures (750°C) is presented herein. Ni thin films were coated on a silicon carbide substrate and used to extract the substrate’s carbon atoms under rapid heating. During the cooling stage, the carbon atoms precipitated on the free surface of the Ni and formed single-layer or few-layer graphene...
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