A six degree of freedom nanomanipulator design based on carbon nanotube bundles

Details A six degree of freedom nanomanipulator design based on carbon nanotube bundles A six degree of freedom nanomanipulator design based on carbon nanotube bundles

2010-04-27

arxiv.org/abs/1004.4913v3

Nanotechnology, Vol. 21, No. 38. (24 September 2010), 385304

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 4 figures, 2 tables

Scientific paper

10.1088/0957-4484/21/38/385304

Scanning probe imaging and manipulation of matter is of crucial importance for nanoscale science and technology. However, its resolution and ability to manipulate matter at the atomic scale is limited by rather poor control over the fine structure of the probe. In the present communication, a strategy is proposed to construct a molecular nanomanipulator from ultrathin single-walled carbon nanotubes. Covalent modification of a nanotube cap at predetermined atomic sites makes the nanotube act as a support for a functional "tool-tip" molecule. Then, a small bundle of nanotubes (3 or 4) with aligned ends can act as an extremely high aspect ratio parallel nanomanipulator for a suspended molecule, where protraction or retraction of individual nanotubes results in controlled tilting of the tool-tip in two dimensions. Together with the usual SPM three degrees of freedom and augmented with rotation of the system as a whole, the design offers six degrees of freedom for imaging and manipulation of matter with precision and freedom so much needed for advanced nanotechnology. A similar design might be possible to implement with other high-aspect ratio nanostructures, such as oxide nanowires.

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