• Idris G. Pathan
• Dinesh N. Suryawanshi
• Anil R. Bari
• Lalchand A. Patil

This work presents the effect of iron doping on the structural, microstructural and electrical properties of zinc stannate (ZnCl4·5H2O, 99.9% pure, Merck made, Germany) thin films, prepared by spray pyrolysis method. The thin films were prepared by doping ferric chloride (FeCl3·4H2O, 99.9% pure, Merck made, Germany) having three different small volume ratios: 1 ml, 2.5 ml and 5 ml, in order to study the iron doping dependence of the structural and microstructural properties of thin films. These properties were characterized with X-ray diffraction (XRD) and Transmission Electron Microscope (TEM). In our study, XRD pattern indicates that ZnSnO3 has a perovskite phase with face exposed hexahedron structure. The 2.5 vol % iron doped ZnSnO3 thin films exhibited better gas response and rapid response–recovery characteristics to hydrogen. Further, it has been shown the gas sensitivity of the iron doped ZnSnO3 gas sensor depends upon its grain size.

pervoskite oxide, effect of iron doping, electrical properties, spray pyrolysis process.

"Effect of iron doping on structural, microstructural and gas sensing properties of nanocrystalline ZnSnO3 thin films prepared by spray pyrolysis techniques", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.478-485, March-2019, Available :http://www.jetir.org/papers/JETIRAO06071.pdf

"Effect of iron doping on structural, microstructural and gas sensing properties of nanocrystalline ZnSnO3 thin films prepared by spray pyrolysis techniques", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp478-485, March-2019, Available at : http://www.jetir.org/papers/JETIRAO06071.pdf