Metal-Catalyst-Free Growth of Single-Walled Carbon Nanotubes

被引:238
作者
Liu, Bilu [1 ]
Ren, Wencai [1 ]
Gao, Libo [1 ]
Li, Shisheng [1 ]
Pei, Songfeng [1 ]
Liu, Chang [1 ]
Jiang, Chuanbin [1 ]
Cheng, Hui-Ming [1 ]
机构
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
关键词
D O I
10.1021/ja8093907
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present a metal-catalyst-free CVD process for the high-efficiency growth of single-walled carbon nanotubes (SWNTs) on surface. By applying a 30-nm-thick SiO2 sputtering deposited Si or Si/SiO2 wafer as substrate and CH4 as a carbon source, dense and uniform SWNT networks with high quality can be obtained without the presence of any metal species. Moreover, a simple patterned growth approach, using a scratched Si/SiO2 wafer as substrate, is also presented for the growth of SWNTs with good position controllability. Our finding of the growth of SWNTs via a metat-catatyst-free process will provide valuable information for understanding the growth mechanism of SWNTs in-depth, which accordingly will facilitate the controllable synthesis and applications of carbon nanotubes.
引用
收藏
页码:2082 / +
页数:3
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