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First-principles study of field emission from carbon nanotubes and graphene nanoribbons

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4 Author(s)
Driscoll, Joseph A. ; Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA ; Cook, Brandon ; Bubin, Sergiy ; Varga, Kalman

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.3610511 

A real-space, real-time implementation of time-dependent density functional theory is used to study electron field emission from nanostructures. Carbon nanotubes and graphene nanoribbons are used as model systems. The calculations show that carbon nanotubes with iron adsorbates have spin-polarized emission currents. Graphene nanoribbons are shown to be good field emitters with spatial variation of the emission current influenced by the presence of passivating hydrogen.

Published in:

Journal of Applied Physics  (Volume:110 ,  Issue: 2 )