▎ 摘　　要

NOVELTY - Two dimensional (2D) hetero structure comprises graphene deposited on a substrate and borophene coupled with the graphene on the substrate to form a 2D borophene- graphene hetero structure comprises lateral and/or vertical hetero structures. USE - Two dimensional (2D) hetero structure used in article of manufacture (claimed), or in fields of nanoscale materials science and engineering, electrical engineering, and materials chemistry. ADVANTAGE - The two dimensional (2D) hetero structure has high-quality synthesis of borophene-graphene hetero structures with nearly atomically abrupt interfaces. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for following: (1) an article of manufacture, which comprises one 2D hetero structure; (2) a method for fabricating a two-dimensional (2D) hetero structure, which involves depositing graphene on a substrate in an ultrahigh vacuum (UHV) chamber at a first temperature and a first chamber pressure to form sub-monolayer graphene on the substrate, and subsequently depositing borophene onto the sub-monolayer graphene on the substrate in the UHV chamber at a second temperature and a second chamber pressure so as to couple the borophene with the graphene on the substrate to form a 2D borophene- graphene hetero structure comprising lateral and/or vertical hetero structures; and (3) a two dimensional (2D) hetero structure,which comprises a first 2D material and a second 2D material coupled with the first 2D material on a substrate to form a 2D hetero structure comprising lateral and/or vertical hetero structures, where first 2D material comprises graphene, hBN, or M0S2, and the second 2D material comprises borophene, germanene, or silicene.