Novel electrical switching behaviour and logic in carbon nanotube Y-junctions

被引:210
作者
Bandaru, PR [1 ]
Daraio, C
Jin, S
Rao, AM
机构
[1] Univ Calif San Diego, Dept Mech Engn, Mat Sci Program, La Jolla, CA 92093 USA
[2] Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA
关键词
D O I
10.1038/nmat1450
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Carbon-nanotube-based electronics offers significant potential as a nanoscale alternative to silicon-based devices for molecular electronics technologies. Here, we show evidence for a dramatic electrical switching behaviour in a Y-junction carbon-nanotube(1-3) morphology. We observe an abrupt modulation of the current from an on- to an off-state, presumably mediated by defects and the topology of the junction. The mutual interaction of the electron currents(4) in the three branches of the Y-junction is shown to be the basis for a potentially new logic device. This is the first time that such switching and logic functionalities have been experimentally demonstrated in Y-junction nanotubes without the need for an external gate. A class of nanoelectronic architecture and functionality, which extends well beyond conventional field-effect transistor technologies(5,6), is now possible.
引用
收藏
页码:663 / 666
页数:4
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