Isolated graphene nanoribbons (GNRs) usually have energy gaps, which scale with their widths, owing to the lateral quantum confinement effect of GNRs. The absence of metallic GNRs limits their applications in device interconnects or being one-dimensional physics platform to research amazing properties based on metallicity. A recent study published in Science provided a novel method to produce metallic GNRs by inserting a symmetric superlattice into other semiconductive GNRs. This finding will broader the applications of GNRs both in nanoelectronics and fundamental science.

中文翻译：

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金属石墨烯纳米带

由于 GNR 的横向量子限制效应，孤立的石墨烯纳米带 (GNR) 通常具有随宽度缩放的能隙。金属 GNR 的缺失限制了它们在器件互连中的应用或作为一维物理平台来研究基于金属度的惊人特性。最近发表在《科学》杂志上的一项研究提供了一种通过将对称超晶格插入其他半导体 GNR 来生产金属 GNR 的新方法。这一发现将扩大 GNR 在纳米电子学和基础科学中的应用。