Figure 9.

Synthesis of MoS₂–WS₂ lateral heterostructure with the SCVD strategy. (a) Growth process diagram of MoS₂–WS₂ lateral heterostructures and alloys. (b) Summary table of conditions for each monolayer structure. (c-e) OM image of a large sized typical MoS₂–WS₂ lateral heterostructure and the corresponding Raman mapping images of the E′ mode of MoS₂ and the A′1 mode of WS₂. Scale bar: 50 μm. Reproduced from ref (76). Copyright 2019 American Chemical Society. (f) Schematic diagram of MoS₂–WS₂ lateral heterostructure synthesized with hydrogen-triggered reaction. (g–i) OM image of MoS₂–WS₂ lateral heterostructure on SiO₂/Si substrate and the corresponding PL intensity mapping at 620 and 662 nm. Scale bar: 5 μm. Reproduced from ref (77). Copyright 2021 American Chemical Society.