Work function of single-wall silicon carbide nanotube

Fawei Zheng, Yu Yang, Ping Zhang*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

10 引用 (Scopus)

摘要

Using first-principles calculations, we study the work function of single-wall silicon carbide nanotube (SiCNT). The work function is found to be highly dependent on the tube chirality and diameter. It increases by decreasing the tube diameter. The work function of zigzag SiCNT is always larger than that of armchair SiCNT. We reveal that the difference between the work function of zigzag and armchair SiCNT comes from their different intrinsic electronic structures, for which the singly degenerate energy band above the Fermi level of zigzag SiCNT is specifically responsible. Our finding offers potential usages of SiCNT in field-emission devices.

源语言英语
文章编号263105
期刊Applied Physics Letters
97
26
DOI
出版状态已出版 - 27 12月 2010
已对外发布

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