Fig. 4
From: Batch production of 6-inch uniform monolayer molybdenum disulfide catalyzed by sodium in glass
Atomic structure of transferred monolayer MoS2. a OM image of a transferred MoS2 domain on a carbon TEM grid, scale bars: 100 µm. b–d SAED patterns from the regions numbered 1–3 in a. The dashed lines indicate the rotation angles (75.01°, 75.15°, and 75.43°) with respect to the horizontal line (scale bar: 3 nm−1). e STEM (upper) image of the MoS2 domain edge and the enlarged view (lower) of the marked rectangular region. Scale bars: 20 and 1 nm, respectively. f Atomically resolved image representing the defect-free hexagonal structure of MoS2. The bright spots are Mo atoms and the gray spots correspond to two-stacked S atoms. Scale bars: 1 nm. g Representative Moiré-scale STM image of MoS2 transferred on HOPG (VT = −0.21 V, IT = 5.19 nA, scale bar: 5 nm) and h corresponding atomic-resolution STM image (VT = −0.33 V, IT = 5.19 nA, scale bar: 2 nm). The arrows indicate the directions of the MoS2 lattice (yellow) and the Moiré pattern (blue). The unit cell for the Moiré pattern is outlined with a rhombus (period of 1.06 ± 0.05 nm)
