Microstructural evolution of single-walled carbon nanotubes under electron irradiation |
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Authors: | Y Zhang S Iijima |
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Institution: | Department of Physics , Trinity College, University of Dublin , Dublin, 2, Ireland |
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Abstract: | A sample containing single-wall carbon nanotubes (SWCNTs) has been annealed at 900°C and then irradiated by high-energy electrons in an ultrahigh-vacuum transmission electron microscope. Sequential high-resolution images showed that the structures of SWCNT bundles and individual SWCNT segments first collapsed into disordered and fullerene-like carbon materials and then reorganized into graphitic particles under continuous electron irradiation. The speed of structural evolution is dependent on the flux density of the electron irradiation. |
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