Electron irradiation effects in single wall carbon nanotubes
作者： Brian W. Smith , David E. Luzzi
DOI: 10.1063/1.1383020
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摘要: We determine, with excellent agreement between theory and experiment, the behavior of single wall carbon nanotubes during uniform electron irradiation. Calculations utilizing known ejection threshold energies predict that an isolated nanotube will damage preferentially on surfaces lie normal to beam. A minimum incident energy 86 keV is required remove a atom by knock-on collision for this geometry. Higher are any other geometry, at exceeding 139 every susceptible ballistic ejection. Transmission microscopy observations using 80–400 electrons corroborate these conclusions. Based upon empirical observations, we also explain processes in nonisolated nanotubes.
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