▎ 摘　　要

NOVELTY - Manufacturing graphene, comprises forming the graphene by unzipping doped carbon materials by an external stimulus. USE - The method is useful for manufacturing graphene (claimed) which is useful in a field effect transistor, a supercapacitor, a hydrogen generation/storage, a solar cell, a photocatalyst, and a biosensor. ADVANTAGE - The method: provides a graphene-based nanostructure doped with heteroatoms without changing a graphene structure by unzipping doped carbon materials; does not manufacture typical graphene but manufacture graphene of which borders are introduced with carbonyl; easily manufactures a functional graphene derivative using the introduced carbonyl without changing a graphene chemical structure; and is capable of progressing a selective unzipping phenomenon of doped carbon materials using relatively low electrochemical potential or of doped carbon materials using a physical external stimulus. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a graphene manufactured by unzipping doped carbon materials by an external stimulus and having an edge formed with carbonyl.