Group 6 transition metal dichalcogenides (G6-TMDs), most notably MoS 2 , MoSe 2 , MoTe 2 , WS 2 and WSe 2 , constitute an important class of materials with a layered crystal structure. Various types of G6-TMD nanomaterials, such as nanosheets, nanotubes and quantum dot nano-objects and flower-lik…