Nano Archive

Carbon nanotube linear bearing nanoswitches

Deshpande, V. V. and Chiu, H. Y. and Postma, H. W. C. and Miko, C and Forro, L and Bockrath, M (2006) Carbon nanotube linear bearing nanoswitches. NANO LETTERS, 6 (6). pp. 1092-1095.

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We exploit the remarkable low-friction bearing capabilities of multiwalled carbon nanotubes (MWNTs) to realize nanoelectromechanical switches. Our switches consist of two open-ended MWNT segments separated by a nanometer-scale gap. Switching occurs through electrostatically actuated sliding of the inner nanotube shells to close the gap, producing a conducting ON state. For double-walled nanotubes in particular, a gate voltage can restore the insulating OFF state. Acting as a nonvolatile memory element capable of several switching cycles, our devices are straightforward to implement, self-aligned, and do not require complex fabrication or geometries, allowing for convenient scalability.

Item Type:Article
Subjects:Physical Science > Nanoelectronics
ID Code:3795
Deposited By:SPI
Deposited On:22 Jan 2009 11:21
Last Modified:19 Feb 2009 10:13

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