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Growth mechanisms of amorphous nanowires
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10.1063/1.2748101
/content/aip/journal/apl/90/26/10.1063/1.2748101
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/26/10.1063/1.2748101
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

HRSEM image showing growth of NWs on a sapphire substrate deposited by a Ni catalyst (, , and ).

Image of FIG. 2.
FIG. 2.

HRTEM image of a NW showing that it is completely amorphous. Inset: diffraction pattern of this NW.

Image of FIG. 3.
FIG. 3.

(Color online) EDS line scan across the NW. The Si to O ratio across the NW is constant. The STEM image (upper left) illustrates the line scan direction (white line).

Image of FIG. 4.
FIG. 4.

(Color online) (a) EELS spectrum of a single NW. The Si:O ratio is . (b) and (c) are reference spectra of and Si, respectively. Both the edge and the line shape of (a) correspond to (b) and are different from (c) Si.

Image of FIG. 5.
FIG. 5.

(Color online) Growth mechanism of NWs by VLS formation of a SiNW first followed by complete oxidation.

Image of FIG. 6.
FIG. 6.

(Color online) Growth mechanism of NWs by formation of clusters on catalyst surface, surface diffusion to lower hemisphere, and diffusion to interface between substrate and catalyst.

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/content/aip/journal/apl/90/26/10.1063/1.2748101
2007-06-26
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Growth mechanisms of amorphous SiOx nanowires
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/26/10.1063/1.2748101
10.1063/1.2748101
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