Figure 5.

(a) Schottky barrier height (SBH) map on the MoS₂ surface obtained by fitting an array of 128 × 128 local current-voltage (I-V) curves with the thermionic emission model. (b) SBH for the defect-free MoS₂ areas (blue) and on subsurface defects (red) vs. the metal tip work function (Φ_Μ). The pinning factor S was evaluated as the slope of the linear fit. The dotted line is the standard Schottky–Mott rule. The SBH of different TMDs (MoSe₂, MoTe₂, WS₂, WSe₂) for defect-free (c) and defect regions (d) vs. the metal tip work function. Panels (a) and (b) adapted with permission from Reference [45], copyright from the Chemical Society 2017. Panels (c) and (b) adapted with permission from Reference [75], copyright from the American Chemical Society 2019.