▎ 摘　　要

NOVELTY - The method involves establishing a graphene model. An atom structure model of graphene is constructed by adding a vacuum layer, cutting, and hanging a hydrogen atom. Charge density and electronic wave function of an optimized graphene are calculated by using a density functional theory. Optical property of a graphene belt is calculated according to the electronic wave function. An energy band structure and electronic state density of the graphene belt are calculated. Optical properties of graphene belt are determined according to charge density. USE - Method for predicting energy band structure and optical property of graphene belt. ADVANTAGE - The method enables avoiding interference of an external factor in test process, avoiding problem of difficult control of an edge structure and width in manufacturing process of a graphene, and ensuring higher efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating a method for predicting energy band structure and optical property of graphene belt. (Drawing includes non-English language text).