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2005 | 3 | 4 | 605-621

Article title

Oxygen detection using yttria-stabilized zirconia thin films doped with platinum


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Yttria stabilized zirconia (YSZ) thin films are obtained using both spray-pyrolysis and dip-coating. The ability of YSZ films incorporated with platinum nanospecies (Pt-YSZ) to detect oxygen is compared with that of pure YSZ thin films using a new experimental setup. With this system, the surface electrical resistance of the films as a function the oxygen content is measured at a fixed temperature. In addition, the effects of thermal annealing on the oxygen sensitivity of the films are observed. Platinum doped samples, Pt-YSZ, show different kinetics of carrier diffusion as compared to pure YSZ samples.










Physical description


1 - 12 - 2005
1 - 12 - 2005


  • Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., 1164, Sofia, Bulgaria
  • Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., 1164, Sofia, Bulgaria


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  • [6] Z. Peng, M. Liu and Ed. Balko: “A new type of amperometric oxygen sensor based on a mixed-conducting composite membrane”, Sensor Actuators B, Vol. 72, (2001), pp. 35–40. http://dx.doi.org/10.1016/S0925-4005(00)00629-8[Crossref]
  • [7] R. Todorovska, N. Petrova and D. Todorovsky: “Spray pyrolysis deposition of YSZ and YSZ-Pt composite films”, Appl. Surface Sci., submitted.
  • [8] C. Dushkin, S. Stoianov, A. Bojinova and S. Russev: “Dip coating apparatus for deposition of TiO2 films”, Ann. Univ. Sofia Fac. Chim., submitted.
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  • [10] R.V. Todorovska, St. Grodeva-Zotova and D.S. Todorovsky: “Spray pyrolysis deposition of α Fe2O3 thin films using iron (III) citric complexes”, Mater. Lett., Vol. 56, (2002), pp. 770–774. http://dx.doi.org/10.1016/S0167-577X(02)00611-0[Crossref]
  • [11] N. Petrova, R. Todorovska, D. Todorovsky and D. Shopova: “Yttrium-zirconium citric complexes as starting material for preparation of YSZ powders and layers”, Key Eng. Mater., Vol. 264–268, (2004), pp. 427–430. http://dx.doi.org/10.4028/www.scientific.net/KEM.264-268.427[Crossref]
  • [12] N. Petrova and D. Todorovsky: “Thermal decomposition of zirconium-yttrium citric complexesprepared in ethylene glycol and water media”, Mater. Res. Bull., submitted.
  • [13] F.A. Kroöger: The Chemistry of Imperfect Crystals, North-Holland Publ. Co., Amsterdam, 1964.
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