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arXiv · 0803.0810

Field emission from single multi-wall carbon nanotubes

M. Passacantando·F. Bussolotti·S. Santucci·A. Di Bartolomeo·F. Giubileo·L. Iemmo·A. M. Cucolo
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Abstract

Electron field emission characteristics of individual multiwalled carbon nanotubes have been investigated by a piezoelectric nanomanipulation system operating inside a scanning electron microscopy chamber. The experimental setup ensures a high control capability on the geometric parameters of the field emission system (CNT length, diameter and anode-cathode distance). For several multiwalled carbon nanotubes, reproducible and quite stable emission current behaviour has been obtained with a dependence on the applied voltage well described by a series resistance modified Fowler-Nordheim model. A turn-on field of about 30 V/um and a field enhancement factor of around 100 at a cathode-anode distance of the order of 1 um have been evaluated. Finally, the effect of selective electron beam irradiation on the nanotube field emission capabilities has been extensively investigated.

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M. Passacantando, F. Bussolotti, S. Santucci, A. Di Bartolomeo, F. Giubileo, L. Iemmo, A. M. Cucolo. 2008-03-06. Field emission from single multi-wall carbon nanotubes. https://doi.org/10.1088/0957-4484%2F19%2F39%2F395701

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