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First-principles study of field emission from carbon nanotubes and graphene nanoribbons
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10.1063/1.3610511
/content/aip/journal/jap/110/2/10.1063/1.3610511
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/2/10.1063/1.3610511

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Field emission current vs time for a nanotube with and without moving ions.

Image of FIG. 2.
FIG. 2.

(Color online) Structure of a (3,3) carbon nanotube with an Fe atom adsorbed on the side.

Image of FIG. 3.
FIG. 3.

(Color online) Structure of a (3,3) carbon nanotube with an Fe4 cluster adsorbed on the side.

Image of FIG. 4.
FIG. 4.

(Color online) Ground state potential energy projections for a nanotube with an adsorbed Fe4 cluster. The projection is made onto the axis along the nanotube.

Image of FIG. 5.
FIG. 5.

(Color online) Ground state density projections for a nanotube with an adsorbed Fe4 cluster.

Image of FIG. 6.
FIG. 6.

Field emission current vs time for a (3,3) graphene nanoribbon. Curves for three different applied electric fields are shown.

Image of FIG. 7.
FIG. 7.

(Color online) Side view of electron density of GNR during peak emission (a) with and (b) without hydrogens at the emission edge. The emission edge is at the right of the figure.

Image of FIG. 8.
FIG. 8.

(Color online) Side view of electron density of CNT during peak emission (a) with and (b) without hydrogens at the emission edge. The emission edge is at the right of the figure.

Tables

Generic image for table
Table I.

Peak spin-polarized field emission currents for (3,3) nanotubes with different adsorbates in a 1 V/Å electric field. Currents are in μA.

Generic image for table
Table II.

Peak field emission currents for (3,3) carbon nanotubes (CNT) and graphene nanoribbons (GNR) in varying electric fields. “+H” indicates that passivating hydrogens were present on the emission edge. Currents are in μA.

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/content/aip/journal/jap/110/2/10.1063/1.3610511
2011-07-21
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: First-principles study of field emission from carbon nanotubes and graphene nanoribbons
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/2/10.1063/1.3610511
10.1063/1.3610511
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