▎ 摘　　要

NOVELTY - Preparing graphene nanoribbons (10) from a few-layer graphene film (12), comprises: growing a few-layer graphene film on a substrate (14); applying nanoparticles (16) to a surface (18) on the few-layer graphene film on the substrate; and performing chemical vapor etching. USE - The method is useful for preparing graphene nanoribbons (claimed) which are useful as nanographene electrodes, and in nanoscale electronic applications including cross-bar memory and logic array systems. ADVANTAGE - The method makes the nanoribbon which: has a zigzag atomic arrangement of carbon along an edge of the nanoribbon body (claimed) and thus increasing the magnitude of the electrical current produced for a fixed temperature difference since it will scale with the number of nanoribbons; and provides improvement in thermoelectric generation which is expected to result from a reduced thermal conduction due to scattering from the edges of the nanoribbons accompanied with an electrical conduction which is only slightly reduced. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a few-layer graphene nanoribbon, comprising a nanoribbon body of graphene having a thickness of 0.3-50 nm and a width of 1-20 nm; and (2) a few-layer graphene nanoribbon product, comprising: a first nanoribbon having a first chirality; and a second nanoribbon also having the first chirality, where the first and second nanoribbons are cut in parallel from a single graphene sheet, are crystallographically oriented along a common lattice orientation, and include highly ordered edges. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the graphene nanoribbon prepared from few-layer graphene film grown on a substrate. Nanoribbons (10) Few-layer graphene film (12) Substrate (14) Nanoparticles (16) Surface of the few-layer graphene film (18)