Effect of 100 MeV O ions irradiation on ethanol sensing response of nanostructures of ZnO and SnO2

Tin dioxide nanoparticles and zinc oxide nanorods were synthesized chemically and thick film gas sensors on alumina substrates were fabricated of these materials. Morphology and crystallite size of synthesized powders were investigated by TEM. The fabricated sensors were irradiated with 100 MeV O io...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2010-01, Vol.98 (1), p.161-166
Main Authors: Singh, Ravi Chand, Singh, Manmeet Pal, Singh, Onkar, Chandi, Paramdeep Singh, Kumar, Ravi
Format: Article
Language:English
Subjects:
Ethyl alcohol
Irradiation
Nanorods
Nanostructure
Sensors
Tin dioxide
Tin oxides
Zinc oxide
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Summary:Tin dioxide nanoparticles and zinc oxide nanorods were synthesized chemically and thick film gas sensors on alumina substrates were fabricated of these materials. Morphology and crystallite size of synthesized powders were investigated by TEM. The fabricated sensors were irradiated with 100 MeV O ions at fluences of 1X10, 1X10 and 1X10 ions/cm. The X-ray diffraction analysis of the samples before and after ion bombardment was performed for structural characterization. The sensing response to ethanol before and after irradiation was carried out for each fabricated sensor. Investigation revealed that irradiated SnO2 based sensor's response and response time increased significantly. Results show that ZnO based sensor exhibit strong resistance to damage caused by ion irradiation which might be due to defects annihilation.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-009-5442-5