fig14

Figure 14. Schematic of MOCVD growth system (A)^[67]. Raman spectrum of MoS₂ films before (B₁) and after (B₂) sulfurization at 850 °C for 30 min (inset: SEM image of a triangular MoS₂ domain following sulfurization). Schematic of 2D MoS₂ synthesis (C). FTIR spectra of Na-DMDTC and Mo-DMDTC (D₁). UV-vis absorbance (at 210 nm) of the mixture of Na-DMDTC and MoCl₅ with varied molar ratios (d₂). Optical image of 2D MoS₂ (D₃). AFM image of 2D MoS₂ marked with a square box in (D₄)^[68].