Figure 1

Labeling of the sites on the rim of an angled-cut \((n,n)\) CNT electrode, the correspondence to angle \(\theta \), and the illustration for nodes (circles with a cross inside). Here we literally use \(n=8\) to illustrate the labeling. The black dots and the white dots represent sites from two different graphene sublattices. Angle \(\theta \) is also used to describe the relative positions of two contact sites, when two polyenes are in parallel and bridging the electrodes.