Fig. 3: Potential energy.

Contour plots of potential energy with electric field lines for a bulk MoS₂, monolayer MoS₂ surrounded by b SiO₂ and c HfO₂, and d potential energies obtained from 1D cuts of the 2D potential energy along the center (z = 0) of the monolayer, at a Schottky barrier height of 0.3 eV and doping concentration of 1 × 10¹² cm⁻².