First-principles study of electronic structure and transport properties of zigzag graphene nanoribbons

被引：21

作者：

Ouyang Fang-Ping ^{[1
]}

Xu Hui ^{[1
]}

Wei Chen ^{[1
]}

机构：

[1] Cent S Univ, Sch Phys Sci & Technol, Changsha 410083, Peoples R China

来源：

ACTA PHYSICA SINICA | 2008年 / 57卷 / 02期

关键词：

graphene nanoribbons; vacancy defects; electronic structure; transport properties;

D O I：

10.7498/aps.57.1073

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By performing first-principles electronic structure and transport calculations, we have demonstrated the electronic structure and transport properties of single layer zigzag graphene nanoribbons with armchair edges and the effect of edge-vacancy defects. It is shown that perfect zigzag graphene nanoribbons are semiconductor with certain energy gaps which will become smaller due to the edge-vacancy defects combining with semiconductor-metal transition. This result may contribute to the electronic structure sewing of the graphene nanoribbons in the energy-band engineering.

引用

页码：1073 / 1077

页数：5

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