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We theoretically demonstrate that rolling a graphene nanoribbon into a few-turn nanoscroll (1.0-1.2 turns) induces a nearly twentyfold enhancement in longitudinal conductance. This giant conductance enhancement arises from interlayer hopping between open boundaries, which converts localized edge states into 1D-like conducting channels and causes a significant Fermi energy shift. The observed inverse scaling of conductance with turn number establishes graphene nanoscrolls as a promising platform for geometry-driven quantum transport.
Few-turn graphene nanoscrolls unlock order-of-magnitude conductance boosts by transforming edge states into conducting channels via interlayer hopping.
Graphene nanoscrolls form a unique radial superlattice whose geometry enables transport behaviors distinct from their flat counterparts. We theoretically demonstrate that rolling a graphene nanoribbon into a few-turn nanoscroll (1.0-1.2 turns) triggers a giant enhancement in longitudinal conductance by an order of magnitude (nearly twentyfold). We show that this effect stems from interlayer hopping between open boundaries, which not only transforms localized edge states into one-dimensional-like conducting channels and also induces a significant Fermi energy shift. Our results reveal an inverse scaling of conductance with turn number, establishing GNSs as a platform for geometry-driven quantum transport and offering a tunable approach to engineering nanoarchitectural electronic states.