  Two-dimensional (2D) Transition Metal Chalcogenides (TMCs) have attracted
tremendous interest from both the scientific and technological communities due
to their variety of properties and superior tunability through layer number,
composition, and interface engineering. Wafer-scale production of 2D TMCs is
critical to the industrial applications of these materials. Extensive efforts
have been bestowed to the large-area growth of 2D TMCs through various
approaches. In this review, recent advances in obtaining large-area 2D TMCs by
different methods such as chemical vapor deposition (CVD), metal-organic CVD,
physical vapor deposition are firstly highlighted and their advantages and
disadvantages are also evaluated. Then strategies for the control of the
grains, morphology, layer number and phase to achieve controllable and uniform
thicknesses and large crystal domains for 2D TMCs are discussed. Applications
of large-area 2D TMCs in electronics, optoelectronics, spintronics etc. are
also introduced. Finally, ideas and prospects for the future developments of
wafer-scale 2D TMCs are provided.
