Polymorphism of Extended Fullerene Networks: Geometrical Parameters and Electronic Structures

作者：Mitsutaka Fujita, Mitsuho Yoshida, Kyoko Nakada · 发表于：Fullerene Science and Technology · 年份：1996 · DOI：10.1080/10641229608001571 · 被引用次数：36 · 研究领域：Carbon Nanotubes in Composites、Fullerene Chemistry and Applications、Graphene research and applications

The morphology of fullerene networks can be widely extended by introducing heptagonal or octagonal rings, which produce a Gaussian negative curvature. Their presence makes it possible to form donut-, coil- and sponge-shaped networks of carbon atoms. We discuss the geometry of the polymorphous forms based on the net diagram method relative to a honeycomb lattice, and further study the electronic structures constructed by the network of electrons system. Special emphasis is put on how the geometrical paramateres, which specify the relative arrangement of polygonal ring, control the electronic structures in the various extended-fullerene networks. In addition, we mention that the presence of a certain type of edge in fullerene network derives critical localized edge stages at the Fermi level.