论文标题
原子上精确的手性石墨烯纳米纤维的底物非依赖性生长
Substrate-Independent Growth of Atomically Precise Chiral Graphene Nanoribbons
论文作者
论文摘要
有助于可以用原子精度合成的新石墨烯纳米苯（GNR）结构，我们设计了一种反应物，它在多步反应后呈现手性（3,1）-GNR，包括ullmann偶联和环螺旋体化。已经在不同的造币金属上成功证明了纳米替亚的合成，并且已经研究了组合过程，以及与每个反应步骤相关的指纹，结合了扫描隧道显微镜，核心水平光谱和密度功能计算。除了GNR手性边缘结构外，还达到了实质性的GNR长度以及完成反应授予该反应物对潜在应用的非常有趣的特性所需的低处理温度。
Contributing to the need of new graphene nanoribbon (GNR) structures that can be synthesized with atomic precision, we have designed a reactant that renders chiral (3,1) - GNRs after a multi-step reaction including Ullmann coupling and cyclodehydrogenation. The nanoribbon synthesis has been successfully proved on different coinage metals, and the formation process, together with the fingerprints associated to each reaction step, has been studied combining scanning tunnelling microscopy, core-level spectroscopy and density functional calculations. In addition to the GNR chiral edge structure, the substantial GNR lengths achieved and the low processing temperature required to complete the reaction grant this reactant extremely interesting properties for potential applications.
