Fig. 1
From: Graphene wrinkle effects on molecular resonance states

One-dimensional wrinkle topology on CVD-grown graphene. a Large-area AFM image of CVD grown graphene on copper substrate and b is a zoom-in of local topography over the region indicated by the white box in panel a and the corresponding phase data c revealing the wrinkle density (scale bar: 2 µm for AFM data in panel a, scale bar: 800 nm for AFM data in b and c). d Atomic resolution three-dimensionally (3D) represented STM image showing the curved nature of the one-dimensional wrinkle geometry (cross-sectional view) of height (H: 0.8 nm) and width (W: 1.2 nm). e Lateral-view of the 3D constant-current STM image shown in d, highlighting the wrinkle atomic structure with the hexagonally packed carbon framework and the length (L: 2.8 nm) along the out-of-plane wrinkle. Tunnelling parameters used for STM data shown (d, e) are Itunnel (It) = 250 pA, Vbias (Vb) = 1.2 V. f Two-dimensional raw AFM data of the wrinkle shown (d, e) (scale bar: 1 nm)