Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 6, Pages 2082-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja8093907
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Funding
- MOST of China [2006CB932701, 2008DFA51400]
- NSFC [90606008, 50702063]
- CAS [KJCX2-YW-M01]
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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.
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