Figure 6 Changes in
the morphology of MoS 2  crystals based on
the MoO 3 /S ratio. Optical microscope images of MoS 2  grown on SiO 2  substrate at a temperature of 780
°C with sulfur = 100 mg and NaCl = 25 mg and MoO 3  (a)
5 mg, (b) 10 mg, (c) 15 mg, (d) 20 mg, and (e) 25 mg. Formation of
continuous layer at selected area on the substrates with MoO 3  amounts (f) 10 mg and (g) 25 mg.