Group 6 transition metal dichalcogenide nanomaterials: synthesis, applications and future perspectives.

Group 6 transition metal dichalcogenides (G6-TMDs), most notably MoS, MoSe, MoTe, WS and WSe, 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-like nanostructures, have been synthesized. High thermodynamic stability under ambient conditions, even in atomically thin form, made nanosheets of these inorganic semiconductors a valuable asset in the existing library of two-dimensional (2D) materials, along with the well-known semimetallic graphene and insulating hexagonal boron nitride.