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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Khatko, V. Ionescu, R. Llobet, E. Vilanova, X. Brezmes, J. Hubalek, J. Malysz, K. Correig, X. |
| Copyright Year | 2004 |
| Description | Author affiliation: Univ. Rovira i Virgili, Tarragona, Spain (Khatko, V.; Ionescu, R.; Llobet, E.; Vilanova, X.; Brezmes, J.) |
| Abstract | The gas sensing properties of chemical sensors based on nanoparticle WO/sub 3/ thick films, doped with indium and bismuth, are studied. Commercial WO/sub 3/ nanopowder with spherical diameter up to 33.1 nm was mixed with either InCl/sub 3/ or BiCl/sub 3/. The sensing films of the sensors were prepared using three different concentrations of each doping metal (1.5 wt.%, 3.0 wt.% and 5.0 wt.%, respectively). The performance of the sensors was tested for different concentrations of ammonia, nitrogen dioxide and carbon monoxide diluted in synthetic dry air. The sensors were operated at 250/spl deg/C, 300/spl deg/C and 350/spl deg/C in order to analyze the effect of the temperature on their responses. The score plot of a principal component analysis (PCA) showed a linear separation between the three investigated gases. The response characteristics of the produced sensors are discussed on the basis of the structural properties of screen-printed nanoparticle WO/sub 3/ thick films. The results obtained show the possibility to classify and quantify between different gases with nanoparticle WO/sub 3/-doped gas sensors. |
| Starting Page | 188 |
| Ending Page | 191 |
| File Size | 1489814 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780386922 |
| DOI | 10.1109/ICSENS.2004.1426132 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-10-24 |
| Publisher Place | Austria |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Gas detectors Thick films Sensor phenomena and characterization Temperature sensors Principal component analysis Gases Chemical sensors Indium Bismuth Doping |
| Content Type | Text |
| Resource Type | Article |
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