Diameter control of arc produced multiwall carbon nanotubes by ambient gas cooling

被引：21
|
作者：
Akita, S [1 ]
Kamo, S [1 ]
Nakayama, Y [1 ]
机构：
[1] Univ Osaka Prefecture, Dept Phys & Elect, Osaka 5998531, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2002年 / 41卷 / 4B期
关键词：
carbon nanotube; dc arc discharge; optical emission spectroscopy; plasma temperature; diameter distribution; carbon monomer;
D O I：
10.1143/JJAP.41.L487
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The cooling effect of an ambient gas on arc discharge for the growth of carbon nanotubes has been investigated in terms of the diameter of the nanotube. A small diameter nanotube with high purity is successfully obtained by cooling of ambient He gas using a water-cooling coil placed around the arc discharge. Furthermore, the width of the diameter distribution becomes narrow under this condition. The effective cooling of the ambient gas induces high plasma temperature, which is evaluated by optical emission spectroscopy.
引用
收藏
页码：L487 / L489
页数：3
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