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Sensors 2010, 10(5), 5074-5089; doi:10.3390/s100505074

Characterization of Mixed xWO3(1-x)Y2O3 Nanoparticle Thick Film for Gas Sensing Application

1
Electrical and Electronic Department, Engineering Faculty, Universiti Putra Malaysia 43400, Serdang, Selangor, Malaysia
2
Physics Department, Science Faculty, Universiti Putra Malaysia 43400, Serdang, Selangor, Malaysia
3
Department of Chemical and Environmental of Engineering Faculty, Universiti Putra Malaysia 43400, Serdang, Selangor, Malaysia
*
Author to whom correspondence should be addressed.
Received: 29 March 2010 / Revised: 27 April 2010 / Accepted: 28 April 2010 / Published: 25 May 2010
(This article belongs to the Section Chemical Sensors)
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Abstract

Microstructural, topology, inner morphology, and gas-sensitivity of mixed xWO3(1-x)Y2O3 nanoparticles (x = 1, 0.95, 0.9, 0.85, 0.8) thick-film semiconductor gas sensors were studied. The surface topography and inner morphological properties of the mixed powder and sensing film were characterized with X-ray diffraction (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). Also, gas sensitivity properties of the printed films were evaluated in the presence of methane (CH4) and butane (C4H10) at up to 500 °C operating temperature of the sensor. The results show that the doping agent can modify some structural properties and gas sensitivity of the mixed powder. View Full-Text
Keywords: gas sensor; thick film; nano powder; tungsten trioxide; yttrium oxide gas sensor; thick film; nano powder; tungsten trioxide; yttrium oxide
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Abadi, M.H.S.; Hamidon, M.N.; Shaari, A.H.; Abdullah, N.; Misron, N.; Wagiran, R. Characterization of Mixed xWO3(1-x)Y2O3 Nanoparticle Thick Film for Gas Sensing Application. Sensors 2010, 10, 5074-5089.

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