论文标题
石墨烯纳米式的本地工作功能以及AU（111）人字重建
Local work function on Graphene Nanoribbons and on the Au(111) herringbone reconstruction
论文作者
论文摘要
石墨烯纳米容器显示出与电荷载体和局部限制以及原子级结构细节相关的令人兴奋的电子特性。局部工作功能为表面上这种结构，电子和化学变化提供了证据。开尔文证明是力显微镜（KPFM）可用于测量与工作函数有关的探针尖端和表面之间的局部接触电势差（LCPD）。在这里，我们使用此技术来绘制在Au（111）底物上生长的石墨烯纳米骨的LCPD。 LCPD数据显示了石墨烯纳米纤维和金底物之间的电荷转移。我们的结果通过密度功能理论计算来证实，这些计算验证了地图是否反映了纳米管的掺杂。我们的结果有助于了解原子结构与电子特性之间的关系。
Graphene nanoribbons show exciting electronic properties related to the exotic nature of the charge carriers and to local confinement as well as atomic-scale structural details. The local work function provides evidence for such structural, electronic and chemical variations at surfaces. Kelvin prove force microscopy (KPFM) can be used to measure the local contact potential difference (LCPD) between a probe tip and a surface, related to the work function. Here we use this technique to map the LCPD of graphene nanoribbons grown on a Au(111) substrate. The LCPD data shows charge transfer between the graphene nanoribbons and the gold substrate. Our results are corroborated with density functional theory calculations which verify that the maps reflect from the doping of nanoribbons. Our results help to understand the relation between atomic structures and electronic properties.
