Figure 1: Geometries and atomic structures of CVD-grown monolayer MoS2.
From: Strain and structure heterogeneity in MoS2 atomic layers grown by chemical vapour deposition
(a–c) Optical images of (a) single-crystal MoS2 triangle, (b) polycrystalline MoS2 with nucleation sites located at the centre and (c) polycrystalline six-pointed MoS2 star. Scale bar, 5, 10 and 5 μm, respectively. (d) Optical image of a MoS2 film with second-layer MoS2 stripes grown along the GBs, indicated by the white arrows. Scale bar, 5 μm. (e) Annular dark-field scanning TEM image of defect-free MoS2. Scale bar, 0.5 nm. (f) Grain boundary in MoS2 with a rotation angle of ~17°. The grain boundary is highlighted by the white dash line. Scale bar, 1 nm.
