Schematic sketches for the synthesis of 2D materials. A few approaches to synthesize anisotropic 2D inorganic materials: (A) Scotch tape initiating the mechanical exfoliation method, (B) chemical vapor deposition process, (C) ultrasonic-assisted exfoliation method, (D) solvothermal-assisted exfoliation, (E) a few approaches to synthesizing low symmetry 2D organic materials. Images A–D reproduced from ref. 1 with permission from Springer Nature, Copyright 2020.