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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hu, Y. Tan, O.K. Zhu, W. |
| Copyright Year | 2005 |
| Description | Author affiliation: Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore (Hu, Y.; Tan, O.K.; Zhu, W.) |
| Abstract | The X-ray diffraction (XRD) and transmission electron microscope (TEM) results show that nano-sized $SrTi_{1plusmnx}O_{3-delta}$ material series (27 nm) with perovskite structure can be synthesized using the high-energy ball milling technique. The thick-film screen printed nano-sized $SrTi_{1plusmnx}O_{3-delta}-based$ sensor series with annealing temperature of 400 degC are found to have good oxygen sensing property at near-human body temperature for the first time for such a low temperature. The effect of the deviating stoichiometry of the nano-sized $SrTi_{1plusmnx}O_{3-delta}-based$ sensors on their sensing properties was also investigated. The optimal relative resistance $(R_{nitrogen}/R_{20%$ oxygen) value of 6.35 was obtained by nano-sized $SrTi_{1plusmnx}O_{3-delta}-based$ sensor at 40 degC operating temperature. Their near-human body operating temperature is much lower than that of the conventional low temperature semiconducting oxygen gas sensors (300-500 degC) and $SrTiO_{3}$ oxygen sensors (<700 degC). This can extend the application of the semiconducting oxygen gas sensors from the conventional high and medium temperature to the lower operating temperature areas such as the medical, environmental and domestic fields etc |
| Starting Page | 818 |
| Ending Page | 821 |
| File Size | 470497 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780390563 |
| DOI | 10.1109/ICSENS.2005.1597825 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-10-30 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Semiconductivity Oxygen Gas detectors Temperature sensors X-ray diffraction X-ray scattering Transmission electron microscopy Semiconductor materials Ball milling Thick film sensors |
| Content Type | Text |
| Resource Type | Article |
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