Single-wall carbon nanotube circuits assembled with an atomic force microscope

被引:63
|
作者
Lefebvre, J [1 ]
Lynch, JF [1 ]
Llaguno, M [1 ]
Radosavljevic, M [1 ]
Johnson, AT [1 ]
机构
[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
关键词
D O I
10.1063/1.125218
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have developed a method to assemble single-wall carbon nanotube (SWNT) circuits using a tapping mode atomic force microscope. Nanotubes can be controllably translated, rotated, cut, and placed on top of one another by varying the tip-sample force, and the tip speed. These operations let us construct complex nanotube circuits, which are contacted using electron beam lithography. We present data from a circuit of two crossed SWNT bundles. The lower bundle behaves as two quantum dots in series, separated by a tunnel barrier created at the junction. Gate voltages can tune the number of charges on each dot and the tunnel barrier transmission. (C) 1999 American Institute of Physics. [S0003-6951(99)04445-9].
引用
收藏
页码:3014 / 3016
页数:3
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