Investigations of the gas sensitivity of specific metal-oxide thin films (such as SrTiC3 and CeO2) have shown that at particular combinations of gas composition and sensor material there exists a specific temperature at which the gas mixture changes from being an 'oxidising' agent to a 'reducing' agent. It is shown that this effect can be used to manufacture a temperature sensor that is calibrated in the desired temperature range (500-1000°C) and whose resistance exhibits an exponential dependence on temperature. This principle of measuring high temperatures allows a maximum resolution of ±1K.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry