First-principles study of field emission from carbon nanotubes and graphene nanoribbons
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Date
2011
Authors
Driscoll, Joseph A.
Cook, Brandon
Bubin, Sergiy
Varga, Kalman
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Abstract
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
Description
Keywords
Research Subject Categories::NATURAL SCIENCES::Physics, carbon nanotubes, graphene nanoribbons
Citation
Joseph A. Driscoll, Brandon Cook, Sergiy Bubin, Ka´ lma´n Varga; 2011; First-principles study of field emission from carbon nanotubes and graphene nanoribbons; JOURNAL OF APPLIED PHYSICS