Effect of SiO2 Overlayer on WO3 Sensitivity to Ammonia

Ammonia gas sensing properties of tungsten trioxide thick film sensor was investigated. The doping of noble catalysts such as Pt, Pd, Au enhanced the gas sensitivity. Platinum doping was found to result in highest sensitivity. Remarkable sensitivity enhancement was realized by coating WO3 thick film...

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Bibliographic Details
Main Authors: Vibha Srivastava, Kiran Jain
Format: Article
Language:English
Published: IFSA Publishing, S.L. 2010-06-01
Series:Sensors & Transducers
Subjects:
WO3
Online Access:http://www.sensorsportal.com/HTML/DIGEST/june_2010/P_637.pdf