Sysoev, Victor V. and Button, Bradly K. and Wepsiec, Kelly and Dmitriev, Serghei and Kolmakov, Andrei (2006) Toward the nanoscopic ``electronic nose'': Hydrogen vs carbon monoxide discrimination with an array of individual metal oxide nano- and mesowire sensors. NANO LETTERS, 6 (8). pp. 1584-1588.
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Official URL: http://dx.doi.org/10.1021/nl060185t
The array of chemiresistors made of individual pristine SnO2, surface doped (Ni)-SnO2 nanowires, and TiO2 and In2O3 mesoscopic whiskers was fabricated on a Si/SiO2 wafer. Their conductance was measured under pulses of H-2 and CO reducing gases in oxygen as background gas. The nanostructures were shown to be n-type semiconductors possessing high sensitivity to the target gases. Following the ``electronic nose'' concept, correlation analysis of response of three-chemiresistor array is shown to be sufficient to discriminate between H-2 and CO signals.
|Subjects:||Analytical Science > Nanotechnology for sensing and actuating|
|Deposited On:||22 Jan 2009 10:19|
|Last Modified:||22 Jan 2009 10:19|
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