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ZnO nanoparticle growth on single-walled carbon nanotubes by atomic layer deposition and a consequent lifetime elongation of nanotube field emission
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10.1063/1.2745226
/content/aip/journal/apl/90/26/10.1063/1.2745226
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/26/10.1063/1.2745226
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

TEM images of suspended nanotubes directly grown on a TEM grid. (a) Low resolution image. [(b) and (c)] Magnified high resolution images from the areas indicated by circles in (a).

Image of FIG. 2.
FIG. 2.

ZnO nanoparticles grown on the wall of suspended nanotubes. (a) TEM image of ZnO nanoparticles grown for . (b) Magnified high resolution image from the areas denoted by the circle in (a). (c) TEM image of ZnO nanoparticles grown for . (d) -contrast image of the same area in (c). The inset shows an EDS spectrum of the sample used for Fig. 2(c).

Image of FIG. 3.
FIG. 3.

(Color) (a) Potential energy curves and (b) atomic geometry for the DEZ molecule adsorbed on the (10,0) nanotube. Squares and circles in (a) are the calculation results with LDA and GGA, respectively. Perspective view of the DEZ molecule is shown in the inset of (a). The red, gray, and blue spheres represent zinc, carbon, and hydrogen atoms, respectively. is the distance between the DEZ molecule and the nanotube surface.

Image of FIG. 4.
FIG. 4.

(a) Emission current variations with time for lifetime measurements. (b) Fowler-Nordheim plots. Sample I has SWNTs without ZnO nanoparticles and sample II has SWNTs with ZnO nanoparticles grown by ALD.

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/content/aip/journal/apl/90/26/10.1063/1.2745226
2007-06-25
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: ZnO nanoparticle growth on single-walled carbon nanotubes by atomic layer deposition and a consequent lifetime elongation of nanotube field emission
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/26/10.1063/1.2745226
10.1063/1.2745226
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