发明名称 |
Assisted selective growth of highly dense and vertically aligned carbon nanotubes |
摘要 |
The selective growth of vertically aligned, highly dense carbon nanotube (CNT) arrays using a thermal catalytic chemical vapor deposition (CCVD) method via selection of the supporting layer where the thin catalyst layer is deposited on. A thin iron (Fe) catalyst deposited on a supporting layer of tantalum (Ta) yielded CCVD growth of the vertical dense CNT arrays. Cross-sectional transmission electron microscopy revealed a Vollmer-Weber mode of Fe island growth on Ta, with a small contact angle of the islands controlled by the relative surface energies of the supporting layer, the catalyst and their interface. The as-formed Fe island morphology promoted surface diffusion of carbon atoms seeding the growth of the CNTs from the catalyst surface.
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申请公布号 |
US2010117764(A1) |
申请公布日期 |
2010.05.13 |
申请号 |
US20060405657 |
申请日期 |
2006.04.17 |
申请人 |
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM |
发明人 |
WANG YUNYU;HO PAUL S.;SHI LI;YAO ZHEN |
分类号 |
H01P1/20;C03C17/38;C23C16/26 |
主分类号 |
H01P1/20 |
代理机构 |
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地址 |
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