Shaping single walled nanotubes

Details Shaping single walled nanotubes Shaping single walled nanotubes

2007-09-06

arxiv.org/abs/0709.0880v1

Phys. Rev. B 77, 045410 (2008)

Physics

Condensed Matter

Materials Science

article + supporting materials

Scientific paper

10.1103/PhysRevB.77.045410

We show that electron irradiation in a dedicated scanning transmission microscope can be used as a nano-electron-lithography technique allowing the controlled reshaping of single walled carbon and boron nitride nanotubes. The required irradiation conditions have been optimised on the basis of total knock-on cross sections calculated within density functional based methods. It is then possible to induce morphological modifications, such as a change of the tube chirality, by removing severals tens of atoms with a nanometrical spatial resolution. These irradiation techniques could open new opportunities for nano-engeneering a large variety of nanostructured materials.

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