▎ 摘　　要

NOVELTY - Producing N-doped graphene quantum sheet, comprises applying a nitrogen plasma on a single-layer graphene formed on a catalyst layer using chemical vapor deposition process. USE - The method is useful for producing N-doped graphene quantum sheet (claimed). ADVANTAGE - The method is solvent-free and simple to process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for N-doped graphene quantum sheet produced by the above method.