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Characterization of the field emission properties of individual thin carbon nanotubes
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10.1063/1.1786634
/content/aip/journal/apl/85/9/10.1063/1.1786634
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/9/10.1063/1.1786634
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Carbon nanotube electron source on a support tip. (a) Numerical calculations on the field enhancement factor. A nanotube with a length of , a radius of , and mounted on a tip with a radius of , has a field enhancement factor of . Equipotential lines every are also shown. (b) Bright field transmission electron microscopy image of a carbon nanotube with a closed end on a tungsten support tip. The image was taken deliberately out-of-focus to enhance the contrast.

Image of FIG. 2.
FIG. 2.

Emission patterns of individual carbon nanotube electron emitters. (a) Emission pattern of the closed nanotube 1. (b) Emission pattern of an open nanotube.

Image of FIG. 3.
FIG. 3.

Field emission measurements of carbon nanotube 1 at room temperature. (a) The emitted current as function of the extraction voltage and a fit of the Fowler–Nordheim theory (line). (b) Fowler–Nordheim plot with a slope of and a linear fit (line). (c) Energy spectrum recorded at an extraction voltage of , room temperature, and an emitted current of (line). Fit with the Fowler–Nordheim theory (dotted line). Numerically generated energy spectrum taking into account the limited resolution of the spectrometer (dashed line).

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/content/aip/journal/apl/85/9/10.1063/1.1786634
2004-08-27
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Characterization of the field emission properties of individual thin carbon nanotubes
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/9/10.1063/1.1786634
10.1063/1.1786634
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