Exfoliation of Centimetre-Sized Transition Metal Dichalcogenide Monolayers

Mechanical exfoliation is one of the most important methods of fabricating high-quality two-dimensional (2D) materials. Compared against other fabrication techniques such as chemical vapor deposition (CVD) and liquid phase exfoliation, films exfoliated by the traditional scotch-tape method retain the high quality of pristine crystals and are clean with little contamination. As such, they are instrumental to the research and technological development in the field of 2D materials.