Field emission patterns originating from pentagons at the tip of a carbon nanotube

被引：109
作者：
Saito, Y [1 ]
Hata, K [1 ]
Murata, T [1 ]
机构：
[1] Mie Univ, Dept Elect & Elect Engn, Tsu, Mie 5148507, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2000年 / 39卷 / 4A期
关键词：
carbon nanotube; multiwall nanotube; field emission; field emission microscopy; field emission pattern; electron source;
D O I：
10.1143/JJAP.39.L271
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Field emission of electrons from multiwall carbon nanotubes (MWCNTs) has been investigated in ultra-high vacuum by field emission microscopy (FEM). MWCNTs whose tips are capped by curved graphite layers give FEM patterns consisting of 6 bright pentagons, each of which has a dark region in its center. Interference fringes are also observed between adjacent pentagonal rings. The present result shows a direct evidence of the presence of 6 pentagons on a tip of a closed carbon nanotube.
引用
收藏
页码：L271 / L272
页数：2
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