Relationship between Gas Sensitivity and Film Structure of SnO2 Thin Film Gas Sensor by Sol-Gel Method
- 1 November 1994
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 23 (11) , 2035-2038
- https://doi.org/10.1246/cl.1994.2035
Abstract
Gas sensing properties of SnO2 films prepared by sol-gel method are investigated to be strongly dependent on the firing temperature conditions. The films obtained at 400 °C have much higher sensitivity than those at 800 °C, being attributed to the fact that the crystallite size of the films linearly increased with the firing temperature. Probable mechanisms to explain the sensing properties are discussed.Keywords
This publication has 8 references indexed in Scilit:
- Study on the sensing mechanism of tin oxide flammable gas sensors using the Hall effectJournal of Applied Physics, 1991
- Relationship between Gas Sensitivity and Microstructure of Porous SnO2Denki Kagaku oyobi Kogyo Butsuri Kagaku, 1990
- Dip‐Coating of Sb‐Doped SnO2 Films by Ethanolamine‐Alkoxide MethodJournal of the Electrochemical Society, 1990
- Hall measurement studies and an electrical conduction model of tin oxide ultrafine particle filmsJournal of Applied Physics, 1982
- Calculation of Carrier Concentration in Polycrystalline Films as a Function of Surface Acceptor State Density: Application for ZnO Gas SensorsJournal of the Electrochemical Society, 1982
- ガスセンサー材料開発の新しい展開Denki Kagaku oyobi Kogyo Butsuri Kagaku, 1982
- Chemisorption Phenomena of Oxygen and Hydrogen on Tin Oxide PowdersSHINKU, 1972
- Zinc Oxide Photoconduction, an Oxygen Adsorption ProcessThe Journal of Chemical Physics, 1957