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| Content Provider | Springer Nature Link |
|---|---|
| Author | Seh, Huankiat Tuller, Harry L. Fritze, Holger |
| Copyright Year | 2004 |
| Abstract | Langasite (La$_{3}$Ga$_{5}$SiO$_{14}$) has proven to be a viable piezoelectric material for use in high temperature bulk acoustic wave gas sensors. To detect changes in pO$_{2}$ under oxidizing conditions, we utilized a PLD deposited Pr$_{0.15}$Ce$_{0.85}$O$_{2 − δ}$ film as the gas sensitive layer given its ready reduction under these conditions. The sensor was operated at 600$^{∘}$C and showed strong sensitivity to changes in oxygen partial pressure, saturating at a frequency shift of −360 Hz below 1%O$_{2}$/Ar (pO$_{2}$ = 10$^{3}$ Pa). The frequency shift was calculated to be too large to be solely accounted for by the corresponding change of mass in the PCO film. Stress induced by dilation of the PCO lattice upon reduction is viewed as being a likely source of sensor sensitivity. |
| Starting Page | 775 |
| Ending Page | 778 |
| Page Count | 4 |
| File Format | |
| ISSN | 13853449 |
| Journal | Journal of Electroceramics |
| Volume Number | 13 |
| Issue Number | 1-3 |
| e-ISSN | 15738663 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2004-01-01 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | langasite gas sensor microbalance Polymer Sciences Optical and Electronic Materials Characterization and Evaluation Materials Ceramics, Glass, Composites, Natural Methods Crystallography |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ceramics and Composites Materials Chemistry Mechanics of Materials Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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