Shrinking a carbon nanotube

被引：141

作者：

Yuzvinsky, T. D.

Mickelson, W.

Aloni, S.

Begtrup, G. E.

Kis, A.

Zettl, A. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Sci Mat, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[4] Ctr Integrated Nanomech Syst, Berkeley, CA USA

来源：

NANO LETTERS | 2006年 / 6卷 / 12期

关键词：

D O I：

10.1021/nl061671j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a method to controllably alter the diameter of an individual carbon nanotube. The combination of defect formation via electron irradiation and simultaneous resistive heating and electromigration in vacuum causes the nanotube to continuously transform into a high-quality nanotube of successively smaller diameter, as observed by transmission electron microscopy. The process can be halted at any diameter. Electronic transport measurements performed in situ reveal a striking dependence of conductance on nanotube geometry. As the diameter of the nanotube is reduced to near zero into the carbon chain regime, we observe negative differential resistance.

引用

页码：2718 / 2722

页数：5

共 33 条

[1] Surface reconstructions and dimensional changes in single-walled carbon nanotubes [J].