Analytical investigation on the electro-optical characteristics of white graphene

White graphene, as single-layer hexagonal boron-nitride, has a similar structure to graphene by alternating boron and nitrogen atoms in place of carbon. The aim of the present paper is to investigate the optical properties of white graphene. For doing so, the dielectric function and refractive index as the most significant optical characteristics are analytically modeled. To this end, the conductance model of white graphene in the degenerate region is adopted to derive the dielectric function and refractive index. In other words, the optical properties of white graphene are evaluated based on the energy band structure and optical conductivity. At the end, the effects of some physical and electrical parameters such as energy band variations and wavelength on the mentioned optical features are highlighted. The obtained results demonstrate a reasonable agreement with previous theoretical outcomes and experiments in terms of trends and numerical values. This paper emphasizes that the white graphene can be a hopeful nominee for being employed in different applications of optoelectronics.