Title data
Bektas, Murat ; Stöcker, Thomas ; Hagen, Gunter ; Moos, Ralf:
Thermopower and Conductivity of Aerosol Deposited Gas Sensitive BaFe1-xTaxO3-δ Films.
2017
Event: Sensor 2017 : 18th International Conference on Sensors and Measurement Technology
, 30.05.-01.06.2017
, Nürnberg, Deutschland.
(Conference item: Conference
,
Poster
)
DOI: https://doi.org/10.5162/sensor2017/P5.9
Abstract in another language
In this study, the thermopower and the electrical conductivity of BaFe1-xTaxO3- sensor films were measured for x in the range of 0.1 to 0.45 (BFTx). Seebeck coefficient and conductivity were measured simultaneously between 400 and 850 °C under varying oxygen partial pressures from 0.01 to 1 bar. BFTx fine powders were prepared by a conventional mixed-oxide route. Crystal structure and phase purity were investigated by X-ray diffraction. BFTx thick-films were successfully deposited by the novel Aerosol Deposition Method (ADM) at room temperature on a special transducer. Both thermopower and electrical conductivity of samples with tantalum contents between x = 0.2 and 0.3 show almost no temperature dependency but dependent strongly on the oxygen partial pressure in the temperature range from 700 to 850 °C. Therefore making a combined, thermoelectric-conductometric sensing principle for temperature independent oxygen sensors is possible.
Further data
Item Type: | Conference item (Poster) |
---|---|
Refereed: | Yes |
Additional notes: | Chapter P5 - Gas, Chemo and Biosensors |
Institutions of the University: | Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos Profile Fields > Advanced Fields > Advanced Materials Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT Faculties Faculties > Faculty of Engineering Science > Chair Functional Materials Profile Fields Profile Fields > Advanced Fields Research Institutions Research Institutions > Research Centres |
Result of work at the UBT: | Yes |
DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
Date Deposited: | 26 Jun 2017 09:08 |
Last Modified: | 26 Jun 2017 09:08 |
URI: | https://eref.uni-bayreuth.de/id/eprint/38168 |