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Surface-depletion controlled gas sensing of ZnO nanorods grown at room temperature
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10.1063/1.2752541
/content/aip/journal/apl/91/3/10.1063/1.2752541
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/3/10.1063/1.2752541

Figures

Image of FIG. 1.
FIG. 1.

(a) SEM image of the ZnO nanorods. (b) HRTEM image of the ZnO nanorods. (c) Electron diffraction pattern of the rods. (d) XRD patterns of the ZnO nanorods.

Image of FIG. 2.
FIG. 2.

[(a) and (b)] Sensing characteristics of the ZnO nanorods as exposed to ethanol, , and at a work temperature of , respectively.

Image of FIG. 3.
FIG. 3.

Energy band diagrams of two contact ZnO rods in air and in ethanol vapor, respectively: (a) the radius is significantly greater than the space charge layer; (b) the radius is compared to the space charge layer.

Image of FIG. 4.
FIG. 4.

(a) Room temperature PL spectrum of ZnO nanorods. (b) XPS spectra of with three resolved O bonding components.

Tables

Generic image for table
Table I.

Controlled model and sensitivity of nanorods with different sizes.

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/content/aip/journal/apl/91/3/10.1063/1.2752541
2007-07-16
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Surface-depletion controlled gas sensing of ZnO nanorods grown at room temperature
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/3/10.1063/1.2752541
10.1063/1.2752541
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