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Anomalous photoconductivity of nanowires in air
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10.1063/1.2771090
/content/aip/journal/apl/91/7/10.1063/1.2771090
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/7/10.1063/1.2771090

Figures

Image of FIG. 1.
FIG. 1.

(a) SEM image and [(b) and (c)] TEM images of the ceria nanowires.

Image of FIG. 2.
FIG. 2.

UV response of the ceria nanowires in air, exhibiting negative photoconductivity.

Image of FIG. 3.
FIG. 3.

curve of the device from air to vacuum ; the current decreases rapidly as the pump is on. Inset; the enlarged decrease edge.

Image of FIG. 4.
FIG. 4.

(a) Photocurrent in response to the mixed gas. During the measurement, the UV light is on. Regions I and III are in vacuum and region II is in mixed gas. (b) UV response of the ceria nanowires at different dry pressures, exhibiting positive photoconductivity.

Image of FIG. 5.
FIG. 5.

Schematic representations of the ceria nanowires in response to UV illumination in (a) air and (b) dry atmosphere, respectively.

Tables

Generic image for table
Table I.

Current before and after UV under different dry oxygen pressures.

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/content/aip/journal/apl/91/7/10.1063/1.2771090
2007-08-14
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Anomalous photoconductivity of CeO2 nanowires in air
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/7/10.1063/1.2771090
10.1063/1.2771090
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