Figure The ball and stick models optimized structure of (a) 2H-WS 2 -graphene heterostructure-top view, (b) WS 2 /graphene heterostructure-lateral view, (c) and (d) refers to the electronic band structure and density of states, respectively. The yellow, blue, and blue colored balls denote sulfur, tungsten, and carbon atoms. The ball and stick models were generated using VESTA software. The calculated E b = -0.07 eV/atom, which hints that the heterostructure is energetically stable.