【摘 要】
：
For future electronics applications of graphene,a key challenge is to make it semiconducting.One approach to opening a band gap in graphene is to reduce the
【机 构】
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DepartmentofPhysicsNUSDepartmentofPhysicsNUS;DepartmentofChemistryNUS
【出 处】
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International Conference on Nanoscience & Technology,China 2
论文部分内容阅读
For future electronics applications of graphene,a key challenge is to make it semiconducting.One approach to opening a band gap in graphene is to reduce the dimensionality of graphene from 2D to 1D graphene nanoribbons.We present bottom up and top down methods of fabricating graphene nanoribbons and investigate their electronic properties.First, we present the surface-assisted bottom-up fabrication of atomically precise armchair graphene nanoribbons (AGNRs) with predefined widths,namely 7-, 14-and 21-AGNRs, on Ag(11 1) as well as their spatially resolved width-dependent electronic structures [1].The local density of states (LDOS) observed by scanning tunneling spectroscopy (STS) reveal the atomic soale electronic structure and the influence of the substrate.
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