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Geometrical enhancement of field emission of individual nanotubes studied by in situ transmission electron microscopy
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10.1063/1.2188389
/content/aip/journal/apl/88/13/10.1063/1.2188389
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/13/10.1063/1.2188389
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) A homemade TEM specimen holder for in situ measurements. (b) A carbon nanotube fixed on the tungsten tip. Scale bar: .

Image of FIG. 2.
FIG. 2.

(a) curves of the field emission for different distance . (b) Corresponding F-N plots. (c) Dependence of on .

Image of FIG. 3.
FIG. 3.

(Color) (a) Scheme of boundary condition in numeric simulation for electric field. is defined as the maximum electric field at the emitting tip. is defined as the electric field at the plane electrode opposite to the emitting tip. (b) Calculated electric field mapping for two different . (c) Calculated relationship between and .

Image of FIG. 4.
FIG. 4.

(a) Calculated relationship between the field enhancement factor and the tube length . (b) Calculated curve of versus the tube radius .

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/content/aip/journal/apl/88/13/10.1063/1.2188389
2006-03-28
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Geometrical enhancement of field emission of individual nanotubes studied by in situ transmission electron microscopy
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/13/10.1063/1.2188389
10.1063/1.2188389
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