▎ 摘　　要

NOVELTY - Graphene nanoribbon is manufactured by filling pore of a porous material with polycyclic aromatic compound, polymerizing the polycyclic aromatic compound, and collecting the graphene nanoribbons which consist of a polymer of the polycyclic aromatic compound. USE - Manufacture of graphene nanoribbon for ultra high-speed device, highly efficient solar cell, quantum computer, etc. ADVANTAGE - Large amounts of graphene nanoribbons whose structures are regulated can be synthesized. The graphene nanoribbon has high mobility, excellent band gap variable, long spin relaxation time, etc. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the graphene nanoribbon of formulae (I) or (II). n= greater than or equal to 1.