Growth of nanotubes for probe microscopy tips

Jason H. Hafner, Chin Li Cheung and Charles M. Lieber ()
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Jason H. Hafner: Harvard University
Chin Li Cheung: Harvard University
Charles M. Lieber: Harvard University

Nature, 1999, vol. 398, issue 6730, 761-762

Abstract: Abstract Carbon nanotubes, which have intrinsically small diameters and high aspect ratios and which buckle reversibly, make potentially ideal structures for use as tips in scanning probe microscopies, such as atomic force microscopy (AFM)1,2,3,4. However, the present method of mechanically attaching nanotube bundles for tip fabrication is time consuming and selects against the smallest nanotubes, limiting the quality of tips. We have developed a technique for growing individual carbon nanotube probe tips directly, with control over the orientation, by chemical vapour deposition (CVD) from the ends of silicon tips. Tips grown in this way may become widely used in high-resolution probe microscopy imaging.

Date: 1999
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DOI: 10.1038/19658

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