Field emission of carbon nanotubes on Mo tip

被引：10
|
作者：
Zhu, J [1 ]
Mao, DJ
Cao, AY
Liang, J
Wei, BQ
Xu, CL
Wu, DH
Peng, ZA
Zhu, BH
Chen, QL
机构：
[1] Tsing Hua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
[2] Beijing Vacuum Elect Res Inst, Beijing 100016, Peoples R China
来源：
MATERIALS LETTERS | 1998年 / 37卷 / 03期
关键词：
carbon nanotubes; field emission;
D O I：
10.1016/S0167-577X(98)00081-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Field emission characteristics of carbon nanotubes (CNTs) were investigated. CNTs were produced by the catalytic decomposition of ethylene on nickel films, which were electroplated onto Mo tips. The SEM images showed that CNTs were quite uniform and disordered; the average diameter is about 100 nm. The measurements were carried out in a diode configuration. As a result, the CNTs showed typical voltage-current characteristics, which qualitatively followed the conventional Fowler-Nordheim equation. In conclusion, CNTs are excellent field emission cathode materials with stable and reproducible field emission characteristics and a lower onset field, which is up to 0.9 V/mu m. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：116 / 118
页数：3
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