Vapor-Phase Precise-Synthesis of 2D Inorganic Materials for Optoelectronics

Comprehensive Summary 2D materials have attracted intensive attention due to their unique electrical and optical properties associated with their strictly defined low dimensionalities.They provide a wide range of basic building blocks for future electronics and optoelectronics.The chemical vapor deposition(CVD)has been proposed to be efficient to realize the controllable thickness,scalable size,which are necessary for both industrial applications and fundamental researches.Herein,we share our research works to realize the controllable growth of 2D materials.We found that stable growth microenvironment can regulate the growth of 2D materials.Thus,we developed near-steady source supply,space-confined,and additive-assisted passivated growth methods to solve the problem of unstable growth environment caused by uneven source and mass transfer.Then,we developed several strategies to precisely control the parity,separation,and transport of the carriers in 2D materials including fabricating defect-free interface via van der Waals dielectrics,modulating the parity of carriers via ferroelectric-field,and the separation of carriers via band engineering.Toward future development,we highlight the opportunities and challenges inthis field.