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Synthesis and characterization of nanocrystalline (Zr0.84Y0.16)O1.92–(Ce0.85Sm0.15)O1.925 heterophase thin films

Published online by Cambridge University Press:  01 February 2006

Aniruddha Kulkarni ,
Alexander Bourandas ,
Junhang Dong ,
Paul A. Fuierer  and
Hai Xiao
Aniruddha Kulkarni
Affiliation:
Department of Chemical Engineering, Petroleum Recovery Research Center (PRRC), New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
Alexander Bourandas
Affiliation:
Department of Chemical Engineering, Petroleum Recovery Research Center (PRRC), New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
Junhang Dong*
Affiliation:
Department of Chemical Engineering, Petroleum Recovery Research Center (PRRC), New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
Paul A. Fuierer
Affiliation:
Department of Materials Engineering, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
Hai Xiao
Affiliation:
Department of Electrical Engineering, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

A new type of nanocrystalline samarium-doped-ceria/yttrium-stabilized-zirconia (SDC/YSZ) heterophase thin film electrolytes was synthesized on MgO and Si substrates by spin coating and thermal treatment of SDC-nanoparticle-incorporated polymeric precursors. In the heterophase films, SDC nanoparticles were uniformly dispersed in a nanocrystalline YSZ matrix. The heterophase structure was stable when fired in air at temperatures up to 850 °C. The nanocrystalline heterophase thin films exhibited electrical conductivities significantly higher than that of the phase-pure YSZ and SDC nanocrystalline thin films at reduced temperatures. The effects of SDC grain size and volume fraction on the electrical conductivity of the heterophase films were also studied.

Keywords

Electrical propertiesFilmNanoscale
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 2 , February 2006 , pp. 500 - 504
Copyright
Copyright © Materials Research Society 2006

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References

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