Generalized Fowler-Nordheim theory of field emission of carbon nanotubes

被引：35
|
作者：
Liang, Shi-Dong [1 ]
Chen, Lu
机构：
[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 02期
关键词：
D O I：
10.1103/PhysRevLett.101.027602
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Based on the low-energy band structure of carbon nanotubes (CNs), we develop a generalized Fowler-Nordheim theory of the CN field emission, in which the behavior of the current-voltage (I-V) characteristics depends on the electric field and the diameter of the CNs. This formalism reveals the key differences of field emission between conventional bulk metallic emitters and low-dimensional emitters and gives a clear physical understanding of the non-Fowler-Nordheim feature of the I-V characteristics of the CN field emission.
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页数：4
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