PMID: 11909500Mar 23, 2002Paper

Ab initio study of field emission from graphitic ribbons

Physical Review Letters
K Tada, K Watanabe

Abstract

We have performed first-principles calculations on field emission (FE) from graphitic ribbons within the time-dependent density-functional theory. An important finding is that dangling bond states localized at clean edges are major contributors to FE current. H termination makes the FE current small due to the disappearance of the dangling-bond states. FE is found not to occur from the edge state of a H-terminated zigzag ribbon even when the state is at the Fermi level. The results of the FE current from graphitic ribbons give approximately 1 microA for maximum of FE current from a circular edge of graphitic sheets with approximately 1 nm diameter of an open-ended multiwalled carbon nanotube under a high electric field of approximately 1 V/A.

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Citations

Feb 27, 2008·The Journal of Chemical Physics·D SorianoJ J Palacios
Aug 16, 2014·Scientific Reports·Shen-Lin ChangMing-Fa Lin
Jan 12, 2012·Nanoscale·S Bala kumar, Jing Guo
Dec 17, 2015·Nanotechnology·Junjie SongPimo He
Mar 21, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·V A SarokaL A Chernozatonskii
Jan 23, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Nguyen N HieuChuong Nguyen
Jan 14, 2003·Ultramicroscopy·Weimin LiuZengquan Xue
Jul 21, 2006·The Journal of Physical Chemistry. B·M S WangQ Chen

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