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Fe catalytic growth, microstructure, and low-threshold field emission properties of open ended tubular graphite cones
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10.1063/1.2943265
/content/aip/journal/jap/103/12/10.1063/1.2943265
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/12/10.1063/1.2943265
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

[(a)–(c)] Different magnification SEM image of TGCs observed at a tilt angle of 35°. The sharpest TGC has an apex angle as small as 2.3° (c); (d) the distribution of straight TGC’s apex angle.

Image of FIG. 2.
FIG. 2.

(a) Low-resolution TEM image of single TGC, (b) high-resolution TEM image of the TGC tip; the inset of (a) is an EDS spectrum of the TGC.

Image of FIG. 3.
FIG. 3.

[(a) and (c)] Cross-sectional SEM image of the TGC sample; (c) EDS spectra taken from the root and middle of individual TGCs shown in (a); (d) enlarged image of the marked area in (b), showing a CNT in the TGC.

Image of FIG. 4.
FIG. 4.

(a) Typical Raman spectra of different areas of a single TGC; (b) the / and FWHM of band as a function of distance from the tip to the root, showing the highly crystalline tip and poor-quality root.

Image of FIG. 5.
FIG. 5.

Emission current density vs the applied electric field of TGCs and corresponding FN plot (inset).

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/content/aip/journal/jap/103/12/10.1063/1.2943265
2008-06-23
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Fe catalytic growth, microstructure, and low-threshold field emission properties of open ended tubular graphite cones
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/12/10.1063/1.2943265
10.1063/1.2943265
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