Title :
Thick-film CO gas sensors
Author :
Nitta, Masayoshi ; Haradome, Miyoshi
Author_Institution :
Nihon University at Narashino, Narashinodai, Funabashi, Japan
fDate :
3/1/1979 12:00:00 AM
Abstract :
A gas sensor of SnO2-based materials has been made by thick-film technology utilizing hydrophobic silica as a binder. The technology can achieve a high productivity as well as a reduced humidity dependence and a sufficient mechanical strength of sensors. A thick-film sensor of SnO2incorporated with ThO2shows highly selective detection for CO gas, separated from H2gas; i.e., sensitivity to CO is 42 times higher than to H2at both gas concentrations of 50 ppm. An excellent humidity-independent sensitivity is also achieved.
Keywords :
Electrodes; Gas detectors; Humidity; Mechanical sensors; Productivity; Silicon compounds; Substrates; Temperature dependence; Temperature sensors; Thick film sensors;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/T-ED.1979.19419
