Recent Progress in the Fabrication, Properties, and Devices of Heterostructures Based on 2D Materials

The controllable fabrication methods, the unique properties, and relative applications of 2D heterostructures were summarized. The generation and detection of interlayer excitons in 2D heterostructures with type II band alignment indicate a longer lifetime and larger binding energy than intralayer excitons. The advances in magnetic tunneling junctions based on 2D heterostructures can be applied in spintronic devices to realize spin filtering.