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Raman spectra of graphene films deposited at 973 K with different laser fluences.
(a) SEM image of the surface of graphene film. The wrinkled structure is obtained by scratching the surface lightly with a knife edge. Inset shows a delaminated graphene sheet (inside the dotted circle) from another scratched region. The otherwise smooth featureless surface is also visible. (b) XRD pattern of the graphene films.
Electrical resistivity as a function of temperature for graphene films deposited at three laser fluences.
Raman spectra obtained from films formed at different substrate temperatures.
Peak intensities and ratios for D, G, and 2D bands for films deposited at 973 K with different laser fluences.
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