Figure 2: Growth of molybdenum disulphide.
From: Seeded growth of highly crystalline molybdenum disulphide monolayers at controlled locations
(a) 5 × 5 array of flakes of monolayer MoS2 grown by chemical vapour deposition. Scale bar is 50 μm. Different growth zones, with different average size of the flakes (see b), are indicated by outlining: dark blue (zone 1), blue (zone 2) and light blue (zone 3). (b) Areas of individual flakes for zones 1, 2 and 3 in a. Large (500–1300 μm2) flakes of crystalline, monolayer MoS2 (with small multilayer regions) were grown from the seed particles. The size of the flakes is largest in zone 1 and smallest in zone 3. (c) Schematic illustrating the proposed mechanism underlying the observation that the growth process results in larger MoS2 flakes in the interior of the array and smaller flakes towards the edges.
