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Title: Spray deposited gallium doped tin oxide thinfilm for acetone sensor application
Authors: Preethi, M.S.
Bharath, S.P.
Bangera, K.V.
Issue Date: 2018
Citation: AIP Conference Proceedings, 2018, Vol.1943, , pp.-
Abstract: Undoped and gallium doped (1 at.%, 2 at.% and 3 at.%) tin oxide thin films were prepared using spray pyrolysis technique by optimising the deposition conditions such as precursor concentration, substrate temperature and spraying rate. X-ray diffraction analysis revealed formation of tetragonally structured polycrystalline films. The SEM micrographs of Ga doped films showed microstructures. The electrical resistivity of the doped films was found to be more than that of the undoped films. The Ga-doped tin oxide thin films were characterised for gas sensors. 1 at.% Ga doped thin films were found to be better acetone gas sensor, showed 68% sensitivity at 350�C temperature. � 2018 Author(s).
Appears in Collections:2. Conference Papers

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