【摘 要】
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Graphene nanoribbons(GNRs)– narrow stripes of graphene – are predicted to exhibit remarkable properties making them suitable for future electronic applications.Contrary to their two-dimensional(2D)par
【机 构】
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Faculty of materials science and engineering,Kunming University of science and technology
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Graphene nanoribbons(GNRs)– narrow stripes of graphene – are predicted to exhibit remarkable properties making them suitable for future electronic applications.Contrary to their two-dimensional(2D)parent material graphene,which exhibits semimetallic behavior,GNRs with widths smaller than 10 nm are predicted to be semiconductors due to quantum confinement and edge effects.Our bottom-up approach consists in the surface-assisted coupling of suitably designed molecular precursors into linear polyphenylenes and their subsequent cyclodehydrogenation,and results in GNRs whose topology,width and edge periphery are defined by the precursor monomers.Various types of atomically precise GNRs thus eventually become available for experimental investigation and exploitation of their many predicted and technologically highly interesting properties.
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