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Vol. 9, Special Issue, December 2010, pp.39-47



Al-doped TiO2 Thick Film Resistors as H2S Gas Sensor


1Chandrakant Dighavkar, 1Arun Patil, 2Sunil PATIL and 2Ratan Borse

1Department of Electronic Science, L.V.H.College, Panchavati, Nasik, India, 422003

Tel.: +919423925523

2Thick film laboratory, Department of Electronic Science, M.S.G. College,

Malegaon Camp, Nasik, India, 422003

E-mail: cgdighavkar@gmail.com



Received: 27 September 2010   /Accepted: 30 November 2010   /Published: 30 December 2010


Abstract: The characterization and H2S gas sensing properties of Pure and Al-doped TiO2 thick films were investigated. Thick films of pure and Al doped titanium dioxide were prepared by the screen printing technique. Pure TiO2 was almost insensitive to H2S gas. Thick films of Al (3 Wt. %) doped TiO2 were observed to be highly sensitive to H2S gas at 200 0C with fast response and recovery time. The results are discussed and interpreted.


Keywords: Al doped TiO2, H2S Gas sensor, Thick film, Gas response


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