About: Synthesis of hexagonal boron nitride

Two dimensional hexagonal boron nitride (2D h-BN) is a material of comparable structure to graphene with potential applications in e.g. photonics., fuel cells and as a substrate for two-dimensional heterostructures. 2D h-BN is isostructural to graphene, but where graphene is conductive, 2D h-BN is a wide-gap insulator. The production of 2D h-BN can be divided into top-down and bottom-up approaches. In bottom-up methods, a film is grown or deposited on a surface; in top-down methods, a larger structure is reduced until the desired state or structure is achieved.