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Influence of additives on the morphological, phase and chemical characteristics of gas sensitive SnO2 sprayed films

Journal Article


Abstract


  • The morphology, and also the chemical and phase composition of sprayed SnO2 films doped with Cu, Zr, Fe and P have been investigated. It was found that in general, the film morphology was characterized by a fine grained basic layer with a few large crystallites located on the surface. All the doping elements decreased the grain size in the basic layer. For Fe, Zr and P the grain size depended on the doping level in the spray solution. It was established that the dopant:Sn ratio in the films was much lower than that in the spray solution. The doping element was preferentially accomodated in the large crystallites with only a small quantity of the dopant being introduced into the basic layer. The gas sensing properties of the films have are discussed on the basis of these results. © 1996 Chapman & Hall.

Publication Date


  • 1996

Citation


  • Stambolova, I., & Konstantinov, K. (1996). Influence of additives on the morphological, phase and chemical characteristics of gas sensitive SnO2 sprayed films. Journal of Materials Science, 31(23), 6207-6213. doi:10.1007/BF00354440

Scopus Eid


  • 2-s2.0-0030420495

Start Page


  • 6207

End Page


  • 6213

Volume


  • 31

Issue


  • 23

Abstract


  • The morphology, and also the chemical and phase composition of sprayed SnO2 films doped with Cu, Zr, Fe and P have been investigated. It was found that in general, the film morphology was characterized by a fine grained basic layer with a few large crystallites located on the surface. All the doping elements decreased the grain size in the basic layer. For Fe, Zr and P the grain size depended on the doping level in the spray solution. It was established that the dopant:Sn ratio in the films was much lower than that in the spray solution. The doping element was preferentially accomodated in the large crystallites with only a small quantity of the dopant being introduced into the basic layer. The gas sensing properties of the films have are discussed on the basis of these results. © 1996 Chapman & Hall.

Publication Date


  • 1996

Citation


  • Stambolova, I., & Konstantinov, K. (1996). Influence of additives on the morphological, phase and chemical characteristics of gas sensitive SnO2 sprayed films. Journal of Materials Science, 31(23), 6207-6213. doi:10.1007/BF00354440

Scopus Eid


  • 2-s2.0-0030420495

Start Page


  • 6207

End Page


  • 6213

Volume


  • 31

Issue


  • 23