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

Joseph A. Driscoll, Brandon Cook, Sergiy Bubin, Kálmán Varga

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

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.

Original languageEnglish
Article number024304
JournalJournal of Applied Physics
Volume110
Issue number2
DOIs
Publication statusPublished - Jul 15 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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