Study on ZnO-doped tin oxide thick film gas sensors

The effect of ZnO doping in SnO 2 was investigated for gas sensor applications. Zinc oxide in different concentration, 2 wt% and 5 wt% was added to tin oxide powder prepared by a co-precipitation method. The gas sensor was made on alumina substrate by the screen-printing technique. The sensitivity f...

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Bibliographic Details
Published inMaterials chemistry and physics Vol. 105; no. 2; pp. 385 - 390
Main Authors Srivastava, Abhilasha, Rashmi, Jain, Kiran
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.10.2007
Subjects
CNG
Co-precipitation
Gas sensors
LPG
Sensitivity
Tin oxide
Zinc oxide
Sensitivity
LPG
Tin oxide
Zinc oxide
Gas sensors
CNG
Co-precipitation
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Summary:The effect of ZnO doping in SnO 2 was investigated for gas sensor applications. Zinc oxide in different concentration, 2 wt% and 5 wt% was added to tin oxide powder prepared by a co-precipitation method. The gas sensor was made on alumina substrate by the screen-printing technique. The sensitivity for different gases such as methane, LPG, ethanol and CO gases was investigated at different temperatures and concentrations. Highest LPG gas sensitivity was observed for 2% Pd addition to 5% Zn-doped SnO 2 gas sensor, with a negligible variation in resistance for ethanol.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2007.05.003