Hetero-assembly and electronic applications of 2D oxide nanosheets

Two-dimensional (2D) nanosheets, which possess atomic or molecular thicknesses and infinite lateral dimensions, have received increasing attention owing to their unique physicochemical properties distinct from those of their bulk counterparts. In particular, the discovery of graphene has facilitated investigations into the intriguing properties of other layered and non-layered 2D nanosheets. Among these 2D nanosheets, 2D oxide nanosheets are an important target owing to their diverse chemical compositions, structures, and functionalities beyond graphene. Herein, I review recent advances in the synthesis, assembly, and properties of 2D oxide nanosheets, highlighting emerging functionalities in electronic applications.