Extended Data Fig. 5: Comparison of mechanical properties between suspended UFG and rough graphene.
From: Uniform thin ice on ultraflat graphene for high-resolution cryo-EM
a, Typical AFM image of suspended UFG on the grid. b, Representative AFM image of suspended rough graphene. The arrows reveal wrinkles in rough graphene. c, Typical force-indentation depth curves of suspended UFG (olive) and rough graphene (red). Meanwhile, the average breaking forces of UFG and rough graphene were shown in the plot. d, Distribution of breaking forces of suspended UFG (olive) and rough graphene (red). The average breaking force of UFG (~956 nN) was almost twice as large as that of rough graphene (~541 nN). e, Typical force-indentation depth curves showing the deformations of suspended UFG (olive) and rough graphene (red) at the initial stage of AFM indentation. f, Comparison of Young’s modulus between UFG (olive) and rough graphene (red). Source data are provided as a Source Data file.
