Using the screen-printing technology, thick films were fabricated by using semiconducting oxide powders such as SnO2, TiO2, LaFeO3, SmFeO3, and In2O3. The microstructure and the gas-sensitive electrical response of the developed thick films were determined. Outdoor field tests were also performed. The use of nano-sized semiconducting oxide powders significantly improved the properties of the gas-sensing materials. Further, acceptable conductance-change performance, along with improved selectivity, was achieved by controlling the microstructure of the oxide through chemical control of the powders and the oxide composition.
|Original language||English (US)|
|Number of pages||6|
|State||Published - Jun 1 1999|
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Physical and Theoretical Chemistry