Structure and gas-sensing characteristics of undoped tin oxide thin films fabricated by ion-assisted deposition
- Structure and gas-sensing characteristics of undoped tin oxide thin films fabricated by ion-assisted deposition
- 송석균; 조준식; 최원국; 정형진; 최동수; 이정용; 백홍구; 고석근
- SnOx; Reactive ion assisted deposition; Grain size; Porosity; Gas sensitivity
- Issue Date
- Sensors and actuators. B, Chemical
- VOL 46, NO 1, 42-49
- Undoped SnOx thin films were deposited by a reactive ion assisted deposition technique at various ion beam potential (VI) onto amorphous SiO2/Si substrates at room temperature. Crystalline structures of the films were investigated in terms of grain size, composition ratio, porosity and peak area percent of adsorbed oxygen. Sensitivities for propane (C3H8), methane (CH4) and hydrogen (H2) gas in SnOx gas sensor devices were characterized at the substrate temperatures of 100-500oC. The gas sensitivities depend on the grain size rather than the porosity. It is also proportioned to the amounts of adsorbed oxygen at room temperature by XPS analysis.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.