Nanocrystalline diamond formation by using an inductively coupled radio-frequency CH4/H2/Ar plasma

被引:7
作者
Ikada, R [1 ]
Iizuka, S [1 ]
机构
[1] Tohoku Univ, Grad Sch Engn, Dept Elect Engn, Sendai, Miyagi 9808579, Japan
关键词
nanocrystalline diamond; diamond crystal; synthetic diamond; plasma CVD; ELECTRON-TEMPERATURE CONTROL; FILMS;
D O I
10.1016/j.diamond.2004.12.035
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Effect of gas-mixing ratio on the formation of nanocrystalline diamond has been investigated in a low electron temperature CH4/H-2/Ar plasma produced by inductively coupled rf discharge. The gas-mixing ratio is controlled by introducing an orifice between the plasma production region and the deposition region. When the diameter of the orifice is 6 mm, the Raman spectrum indicating a deposition of nanocrystalline diamond is observed when the gas-mixing ratio is less than similar to 0.03. The reduction of CH4 gas-mixing ratio is important for the formation of nanocrystalline diamonds. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:446 / 450
页数:5
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