▎ 摘　　要

NOVELTY - The method involves providing silicon nanometer particles and boundaries of graphene with different boundary orientation. The boundaries of the graphene are selectively cut by hydrogenation reaction of the graphene under a resistant catalytic reaction of the nanometer particles. A product is obtained by cutting the graphene that is a graphene nanometer band. A heterojunction or a quantum point is provided with regular shape and normal boundary. Bandwidth of the graphene, width of the heterojunction and size of the quantum point are in a nanometer level. USE - Method for cutting graphene in boundary selectivity way. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation of a method for cutting graphene in boundary selectivity way. '(Drawing includes non-English language text)'