Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Electrodeposited and sol-gel precipitated p-type SrTi1-xFexO3-δ semiconductors for gas sensing

Title data

Sahner, Kathy ; Gouma, Perena ; Moos, Ralf:
Electrodeposited and sol-gel precipitated p-type SrTi1-xFexO3-δ semiconductors for gas sensing.
In: Sensors. Vol. 7 (2007) Issue 9 . - pp. 1871-1886.
ISSN 1424-8220
DOI: https://doi.org/10.3390/s7091871

Official URL: Volltext

Project information

Project financing: Deutscher Akademischer Austauschdienst

Abstract in another language

In the present contribution, three methods for the preparation of nanoscaledSrTi1-xFexO3-δ sensor films for hydrocarbon sensing were investigated. Besides screen-printed thick films based on sol-precipitated nanopowders, two novel synthesis methods,electrospinning and electrospraying, were tested successfully. All of these sensor devicesshowed improved sensor functionality in comparison to conventional microscaled thickfilms. In order to explain the impact of the enhanced surface-to-volume ratio on sensorproperties in a quantitative way, a mechanistic model was applied to micro- and nanoscaleddevices. In contrast to the conventional diffusion-reaction model that has been proposed forn-type semiconducting sensors, it contained novel approaches with respect to themicroscopic mechanism. With very few fit variables, the present model was found torepresent well sensor functionality of p-type conducting SrTi0.8Fe0.2O3-δ films. In additionto the temperature dependency of the sensor response, the effect of the specific surface areaon the sensor response was predicted.

Further data

Item Type: Article in a journal
Refereed: Yes
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
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
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 Jan 2015 08:18
Last Modified: 06 Apr 2016 08:19
URI: https://eref.uni-bayreuth.de/id/eprint/5992