Characteristics of multiwalled carbon nanotube nanobridges fabricated by poly(methylmethacrylate) suspended dispersion

被引:19
作者
Lee, SB
Teo, KBK
Robinson, LAW
Teh, AS
Chhowalla, M
Hasko, DG
Amaratunga, GAJ
Milne, WI
Ahmed, H
机构
[1] Univ Cambridge, Cavendish Lab, Microelect Res Ctr, Cambridge CB3 0HE, England
[2] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2002年 / 20卷 / 06期
关键词
D O I
10.1116/1.1520569
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report on the transport characteristics of individual multiwalled carbon nanotube/nanofibers (MWCNTs) grown by plasma-enhanced chemical vapor deposition (PECVD). The measurements were performed on individual MWCNT nanobridges suspended by sputtered Nb contacts. Temperature dependent measurements of conductance revealed that the conductance is dominated by a contribution from thermally activated carriers. High-field measurements show that the PECVD grown MWCNTs are able to carry high current densities (similar to10(8) A/cm(2)) and after reaching a critical limit, break down in segments of nanotube shells while still being electrically stable. The high-density current transport and reliability make PECVD grown. MWCNTs good candidates for applications as field emission cathodes and nanoelectronic interconnects. (C) 2002 American Vacuum Society.
引用
收藏
页码:2773 / 2776
页数:4
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