Extended Data Fig. 2: Wrinkles occur even when growth is at lower temperature or higher H:C ratio. | Nature

Extended Data Fig. 2: Wrinkles occur even when growth is at lower temperature or higher H:C ratio.

From: Proton-assisted growth of ultra-flat graphene films

Extended Data Fig. 2

a, AFM images of graphene films grown on Cu(111) at different growth temperatures from 1,050 °C to 850 °C. b, Typical AFM images of graphene grown on Cu(111) at 1,000 °C, adjusting the ratio of H2:CH4 from 10:1 to 1,000:1. c, Enlarged AFM images of b with zoom-in height scale. Scale bars in ac are 3 μm, 10 μm and 3 μm, respectively.

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