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Sensors 2010, 10(4), 4083-4099; doi:10.3390/s100404083
Review

One-Dimensional Oxide Nanostructures as Gas-Sensing Materials: Review and Issues

1,*  and 2
Received: 3 March 2010; in revised form: 15 April 2010 / Accepted: 16 April 2010 / Published: 22 April 2010
(This article belongs to the Special Issue Metal-Oxide Based Nanosensors)
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Abstract: In this article, we review gas sensor application of one-dimensional (1D) metal-oxide nanostructures with major emphases on the types of device structure and issues for realizing practical sensors. One of the most important steps in fabricating 1D-nanostructure devices is manipulation and making electrical contacts of the nanostructures. Gas sensors based on individual 1D nanostructure, which were usually fabricated using electron-beam lithography, have been a platform technology for fundamental research. Recently, gas sensors with practical applicability were proposed, which were fabricated with an array of 1D nanostructures using scalable micro-fabrication tools. In the second part of the paper, some critical issues are pointed out including long-term stability, gas selectivity, and room-temperature operation of 1D-nanostructure-based metal-oxide gas sensors.
Keywords: 1-dimensional nanostructures; gas sensors; long-term stability; gas selectivity; electronic-nose; room-temperature operation 1-dimensional nanostructures; gas sensors; long-term stability; gas selectivity; electronic-nose; room-temperature operation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Choi, K.J.; Jang, H.W. One-Dimensional Oxide Nanostructures as Gas-Sensing Materials: Review and Issues. Sensors 2010, 10, 4083-4099.

AMA Style

Choi KJ, Jang HW. One-Dimensional Oxide Nanostructures as Gas-Sensing Materials: Review and Issues. Sensors. 2010; 10(4):4083-4099.

Chicago/Turabian Style

Choi, Kyoung Jin; Jang, Ho Won. 2010. "One-Dimensional Oxide Nanostructures as Gas-Sensing Materials: Review and Issues." Sensors 10, no. 4: 4083-4099.



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