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Journal of SensorsVolume 2008 2008, Article ID 254283, 5 pages

Research Article

School of Electrical and Computer Engineering, RMIT University, Melbourne Victoria 3001, Australia

Department of Mechanical Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy

School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia

Received 6 May 2008; Accepted 27 June 2008

Academic Editor: Michele Penza

Copyright © 2008 A. Z. Sadek et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Amorphous titanium dioxide and gold Au doped -based surface acoustic wave SAW sensors have been investigated as hydrogen gas detectors. The nanocrystal-doped films were synthesized through a sol-gel route, mixing a Ti-butoxide-based solution with diluted colloidal gold nanoparticles. The films were deposited via spin coating onto YX SAW transducers in a helium atmosphere. The SAW gas sensors were operated at various temperatures between 150 and C. It was found that gold doping on increased the device sensitivity and reduced the optimum operating temperature.

Autor: A. Z. Sadek, D. Buso, A. Martucci, P. Mulvaney, W. Wlodarski, and K. Kalantar-zadeh

Fuente: https://www.hindawi.com/


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