Single-crystal metal-oxide gas sensors

Geatches, Rachel M. and Chadwick, Alan V. and Wright, John D. (1991) Single-crystal metal-oxide gas sensors. Sensors and Actuators B: Chemical, 4 (3-4). pp. 467-472. ISSN 0925-4005. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Polycrystalline n-type semiconducting metal oxides have been utilized as gas-sensing materials for the detection of toxic and flammable gases for many years. Although these devices can be highly sensitive to reducing gases, a frequent disadvantage is their lack of selectivity. However, work on zinc oxide has shown that using single crystals markedly improves the selectivity of the material to carbon monoxide. This paper reports a detailed investigation of the gas-sensing properties of other metal oxide single crystals, including tin oxide (SnO2), titanium oxide (TiO2) and iron oxide (Fe2O3), to CO, CH4 and water vapour.

Item Type: Article
Subjects: Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General) > TA166 Instrumentation
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: O.O. Odanye
Date Deposited: 21 Oct 2009 13:33
Last Modified: 07 Jul 2014 10:50
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