Hexagonal boron nitride (h-BN) is a two-dimensional material that has garnered significant attention in the field of materials science and nanotechnology. It is structurally similar to graphene, consisting of a single layer of boron and nitrogen atoms arranged in a hexagonal lattice. h-BN possesses unique properties such as high thermal and chemical stability, excellent insulating properties, high thermal conductivity, and high mechanical strength. These properties make it a promising material for a wide range of applications, including as a dielectric material in electronics, a lubricant in high-temperature environments, and as a substrate for growing other two-dimensional materials like graphene. Research in the area of h-BN focuses on understanding its fundamental properties, developing new synthesis methods to produce high-quality h-BN layers, and exploring its potential applications in various fields. This research area is highly interdisciplinary, involving researchers from physics, chemistry, materials science, and engineering. Overall, h-BN holds great promise for advancing nanotechnology and enabling new technologies in the future.