Production and application of reactive plasmas using helicon-wave discharge in very low magnetic fields

被引:9
作者
Sato, G [1 ]
Kato, T [1 ]
Oohara, W [1 ]
Hatakeyama, R [1 ]
机构
[1] Tohoku Univ, Dept Elect Engn, Sendai, Miyagi 9808579, Japan
关键词
helicon-wave discharge; plasma enhanced chemical vapor deposition; nanostructures; carbon;
D O I
10.1016/j.tsf.2005.08.049
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In order to explore new application fields of a helicon-wave discharge, we have investigated the production of helicon-wave plasmas in very low magnetic fields (0-10 mT) and the resultant nanocarbon creation using methane and/or hydrogen. The reactive plasmas are effectively produced by the helicon wave around 3 mT independently of gas species in the wide range of pressures (0.1 -10 Pa), where hydrocarbons and atomic hydrogens are generated. Using the helicon-wave reactive plasma as a precursor source for plasma-enhanced chemical vapor deposition, well-aligned carbon nanotubes and nanowalls are found to be formed even in a very low gas pressure of 0.7 Pa. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:550 / 554
页数:5
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