Carbon nanotube as the core of conical carbon fiber: fabrication, characterization and field emission property

被引：19

作者：

Zhang, W.

Xi, Z. H.

Zhang, G. M. ^{[1
]}

Wang, S.

Wang, M. S.

Wang, J. Y.

Xue, Z. Q.

机构：

[1] Peking Univ, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China

[2] Peking Univ, Dept Elect, Beijing 100871, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2007年 / 86卷 / 02期

关键词：

D O I：

10.1007/s00339-006-3764-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conical carbon fibers (CCFs) with carbon nanotubes (CNTs) as their cores were grown on graphite substrates with a chemical vapor deposition method. The CNT-cored CCFs were about several tens of micrometers in length. In the interaction with a probe system, the CNT core filaments demonstrated good mechanical strength. Furthermore, field emission currents around 100 mu A were also attained from individual CNTs. The growth mechanism of this CNT/CCF combined structure is briefly discussed. Our method has provided a convenient and inexpensive approach to mass assembling CNTs to a carbon substrate.

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页码：171 / 175

页数：5

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