Electrical conductivity of nanocrystalline ceria and zirconia thin films

The results of studies of the preparation, structure and electrical conductivity of ZrO 2:16% Y and CeO 2 thin films are presented. Dense films with grain size controlled in the region of 1–400 nm have been obtained on monocrystalline sapphire and polycrystalline Al 2O 3 substrates using a polymeric...

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Published in:Solid state ionics 2000-11, Vol.136 (1-2), p.1225-1233
Main Authors: Kosacki, Igor, Suzuki, Toshio, Petrovsky, Vladimir, Anderson, Harlan U
Format: Article
Language:English
Subjects:
Ceria
Electrical conductivity
Impedance spectroscopy
Nanocrystals
Nonstoichiometry
Oxygen conductors
Zirconia
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container_title Solid state ionics
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creator Kosacki, Igor
Suzuki, Toshio
Petrovsky, Vladimir
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description The results of studies of the preparation, structure and electrical conductivity of ZrO 2:16% Y and CeO 2 thin films are presented. Dense films with grain size controlled in the region of 1–400 nm have been obtained on monocrystalline sapphire and polycrystalline Al 2O 3 substrates using a polymeric precursor spin coating method. The electrical conductivity of nanocrystalline thin films has been studied as a function of oxygen activity and temperature and correlated with the microstructure. Nanocrystalline specimens are characterized by enhanced electrical conductivity and different stoichiometry compared with microcrystalline material.
doi_str_mv 10.1016/S0167-2738(00)00591-9
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subjects Ceria
Electrical conductivity
Impedance spectroscopy
Nanocrystals
Nonstoichiometry
Oxygen conductors
Zirconia
title Electrical conductivity of nanocrystalline ceria and zirconia thin films
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