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Vol. 76, Issue 2, February 2007, pp. 1001-1007

 

Bullet

 

Influence of Liquid Petroleum Gas on the Electrical Parameters of the WO3 Thick Film

 

R. S. KHADAYATEb, J.V. SALIa and P. P. PATILa

aDepartment of Physics, North Maharashtra University, Jalgaon 425 001, Maharashtra, India

Tel.: +91 0257 2258411, E-mail: pnmu@yahoo.co.in

bG.D.M. Arts, K.R.N. Commerce and M.D. Science College, Jamner, Dist-Jalgaon, Maharashtra, India

Tel.:+91 0257 2263437, E-mail: rskhadayate@yahoo.com

 

 

Received: 17 January 2007 / Accepted: 22 February 2007 / Published: 26 February 2007

 

Abstract: In this work, the WO3 thick films were prepared by standard screen-printing technology. These films were characterized by x-ray diffraction (XRD) measurements and scanning electron microscopy (SEM). Influence of LPG on the electrical properties of the prepared WO3 thick film is reported. It was observed that the slope of the Arrhenius curves of the WO3 thick film decreased as the medium changed from pure air to 100 ppm LPG in air. From I-V characteristics, it was observed that the WO3 thick film exhibit highest sensitivity to 50 ppm LPG in air at 400oC.

 

Keywords: WO3 thick film, screen printing, arrhenius curves, I-V characteristic, LPG

 

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