alexa The detection of H2S at room temperature by using individual indium oxide nanowire transistors.


Journal of Physical Chemistry & Biophysics

Author(s): Zeng Z, Wang K, Zhang Z, Chen J, Zhou W

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Abstract In(2)O(3) nanotransistors for gas sensor applications were fabricated using individual In(2)O(3) nanowires prepared by chemical vapor deposition. The nanosensors demonstrate characteristics of high sensitivity to H(2)S, and fast response and recovery, with the detection limit at 1 ppm at room temperature. The high sensitivity might be attributed to the strong electron accepting capability of H(2)S to the nanowires and the high surface-to-volume ratio of the nanowires. In addition, the nanosensors show a good selective detection of H(2)S under exposure to NH(3) and CO even at 1000 ppm; they are highly promising for practical applications in detection of low concentration H(2)S at room temperature. This article was published in Nanotechnology and referenced in Journal of Physical Chemistry & Biophysics

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