Enhancement of field emission property from hills-like carbon nanotubes film

被引：4
|
作者：
Chen, T. [1 ]
Sun, Z. [1 ]
Chen, Y. W. [1 ]
Wang, L. L. [1 ]
Guo, P. S. [1 ]
Que, W. X. [1 ]
机构：
[1] E China Normal Univ, Engn Res Ctr Nanophoton & Adv Instrument, Dept Phys, Minist Educ, Shanghai 200062, Peoples R China
来源：
THIN SOLID FILMS | 2008年 / 516卷 / 06期
基金：
中国国家自然科学基金;
关键词：
carbon nanotube; field emission; hills-like; density;
D O I：
10.1016/j.tsf.2007.05.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Improved field emission property of carbon nanotubes (CNTs) is achieved by using NiTi alloy film as catalyst under optimized condition. The NiTi alloy films are prepared by magnetron co-sputtering process and the CNTs films are synthesized by thermal chemical vapor deposition. With the increase of the Ni/Ti ratio from 19 at.% to 95 at.%, the CNTs density increases from discrete cluster to dense network, and the optimized field emission property of CNTs film is found at the medium density. However, the field emission property is significantly enhanced when the Ni/Ti ratio is about 76 at.%, and it is supposed to attribute to the combined effect of the hills-like surface enhancement and the intrinsic emission properties of CNTs. (c) 2007 Elsevier B.V All rights reserved.
引用
收藏
页码：1112 / 1115
页数：4
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