Abstract
Nanostructured ZnSnO3 thin films were prepared onto preheated glass substrate by a spray pyrolysis technique using water soluble Zinc chloride and Stannic chloride as precursors. The crystallinity of the prepared samples was analyzed by X-ray diffraction spectroscopy. The X-ray diffractogram of as prepared thin film clearly indicated the stichiometric and pervoskite nanostructured nature of ZnSnO3. The TEM image shows few nanorods along with fine particles of pervoskite ZnSnO3. The band gap energy of thin film sample was observed to be 4.13eV. The band gap energy was found to be enhanced as compare to the reported value. The sample showed selective response to H2 gas among the various gases such as LPG, hydrogen, ethanol, chlorine, carbon dioxide and ammonia. The dynamic response of ZnSnO3 pervoskite thin film sample is presented. The pervoskite oxides were used as potential gas sensing material for their stability in thermal and chemical atmospheres.
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