The paper investigates the electronic transport properties of lithographically patterned graphene nanoribbons (GNRs), where lateral confinement of charge carriers creates an energy gap near the charge neutrality point. The researchers fabricated GNRs of varying widths and crystallographic orientations, contacting individual graphene layers with metal electrodes. Temperature-dependent conductance measurements revealed that the energy gap scales inversely with the ribbon width, indicating that the band gap of graphene nanostructures can be engineered through lithographic processes. The study also found that the energy gap behavior is consistent across different crystallographic directions, suggesting that the detailed edge structure of the GNRs plays a more significant role than the crystallographic direction. This work paves the way for the development of graphene-based electronic devices.The paper investigates the electronic transport properties of lithographically patterned graphene nanoribbons (GNRs), where lateral confinement of charge carriers creates an energy gap near the charge neutrality point. The researchers fabricated GNRs of varying widths and crystallographic orientations, contacting individual graphene layers with metal electrodes. Temperature-dependent conductance measurements revealed that the energy gap scales inversely with the ribbon width, indicating that the band gap of graphene nanostructures can be engineered through lithographic processes. The study also found that the energy gap behavior is consistent across different crystallographic directions, suggesting that the detailed edge structure of the GNRs plays a more significant role than the crystallographic direction. This work paves the way for the development of graphene-based electronic devices.