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NiO-TiO2 thick-films for detection of alcohol vapours at room temperature

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conference contribution
posted on 2011-07-19, 15:14 authored by Gerard M. Lyons, Khalil Arshak, Leon M. Cavanagh, Ibrahim Gaidan, Edward G. Moore, S.A. Clifford, R. Phelan, Colm Cunniffe, John A. Harris
The response of screen-printed thick-films of NiO/TiO2 to organic solvent vapours was studied. It was found that these films displayed a significant resistance change in response to the vapours even at room temperature. The sensors displayed an inherent selectivity, proving most sensitive to toluene and propanol vapour; with comparatively low responses exhibited towards ethanol and methanol vapours. Very fast response and recovery times of 9s and 16s respectively were recorded for the devices upon exposure to 4,000ppm step changes in propanol concentration.

History

Publication

Proceedings of IEEE Sensors 2004;

Publisher

IEEE Computer Society

Note

peer-reviewed

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EI

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©2004 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

Language

English

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    University of Limerick

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    Keywords

    nickel oxidetitanium dioxidegas sensorthick film

    Licence

    CC BY-NC-SA 1.0

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