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Thermal oxidation of polycrystalline tungsten nanowire
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10.1063/1.3504248
/content/aip/journal/jap/108/9/10.1063/1.3504248
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3504248

Figures

Image of FIG. 1.
FIG. 1.

Micrograph of prepared TEM sample coated with electrode patterns. Inset SEM image shows nanowire grown on top of the membrane.

Image of FIG. 2.
FIG. 2.

(a) TEM image of W nanowire with an average diameter of 25 nm, inset (i) shows the selective diffraction pattern. (b) Nanowire oxidized for 1 h, inset (i) shows HRTEM image for area A and inset (ii) is the EDX spectrum for area B. (c) and (d) are TEM images of nanowire after oxidation for 4 and 12 h.

Image of FIG. 3.
FIG. 3.

(a) Tungsten core diameter and (b) tungsten oxide shell thickness as oxidation progresses.

Image of FIG. 4.
FIG. 4.

Stress components in a convex tungsten oxide nanowire structure during oxidation.

Image of FIG. 5.
FIG. 5.

Simulated oxide thickness assuming (a) reaction-limited oxidation, and (b) diffusion-limited oxidation compared with experimental data.

Tables

Generic image for table
Table I.

Reference values used in simulation.

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/content/aip/journal/jap/108/9/10.1063/1.3504248
2010-11-04
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermal oxidation of polycrystalline tungsten nanowire
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3504248
10.1063/1.3504248
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