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Sensors 2006, 6(10), 1345-1366; doi:10.3390/s6101345

Surface Science Studies of Gas Sensing Materials: SnO2

Department of Physics, University of South Florida, Tampa, FL 33620, USA
Received: 26 September 2006 / Accepted: 16 October 2006 / Published: 17 October 2006
(This article belongs to the Special Issue Gas Sensors)
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This review is an attempt to give an overview on how surface science studies cancontribute to a fundamental understanding of metal oxide gas sensors. In here tin dioxide isused as a model system for metal oxide gas sensor materials and we review surface sciencestudies of single crystal SnO2. The composition, structure, electronic and chemicalproperties of the (110) and (101) surfaces is described. The influence of compositionalchanges as a function of the oxygen chemical potential on the electronic surface structureand the chemical properties is emphasized on the example of the (101) surface. The surfacechemical properties are discussed on the example of water adsorption. It is shown thechemical and gas sensing properties depend strongly on the surface composition. View Full-Text
Keywords: surface science; single crystal; metal oxide surfaces; photoemission; scanning tunneling microscopy surface science; single crystal; metal oxide surfaces; photoemission; scanning tunneling microscopy

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Batzill, M. Surface Science Studies of Gas Sensing Materials: SnO2. Sensors 2006, 6, 1345-1366.

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