Fig. 5
From: Capture the growth kinetics of CVD growth of two-dimensional MoS2
a ADF-STEM image of irregular shaped monolayer MoS2 cluster with two primary types of edge structure: Mo-zz edge and S-Mo edge (denoted by blue and red lines separately) with the corresponding structural models (blue sites are Mo atoms and red sites are S atoms). b ADF-STEM image of hexagonal-shaped MoS2 c ADF-STEM image of triangle MoS2. d The edge structural model of the irregular MoS2, e the edge structural model of the near-hexagon MoS2. f the edge structural model of the near-triangle MoS2. g Histogram of the amount of the edge atoms with different size. h Results from DFT calculations for the formation energies of different edges as a function of Δμ Mo
