Yttria and Ceria Doped Zirconia Thin Films Grown by Pulsed Laser Deposition
نویسندگان
چکیده
The Yttria stabilized Zirconia (YSZ) is a standard electrolyte for solid oxide fuel cells (SOFCs), which are potential candidates for next generation portable and mobile power sources. YSZ electrolyte thin films having a cubic single phase allow reducing the SOFC operating temperature without diminishing the electrochemical power density. Films of 8 mol% Yttria stabilized Zirconia (8YSZ) and films with addition of 4 weight% Ceria (8YSZ + 4CeO 2 ) were grown by pulsed laser deposition (PLD) technique using 8YSZ and 8YSZ + 4CeO 2 targets and a Nd-YAG laser (355 nm). Films have been deposited on Soda-Calcia-Silica glass and Si(100) substrates at room temperature. The morphology and structural characteristics of the samples have been studied by means of X-ray diffraction and scanning electron microscopy. Films of a cubic-YSZ single phase with thickness in the range of 1-3 μm were grown on different substrates.
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Tensile Lattice Distortion Does Not Significantly Affect Oxygen Transport in Yttria-stabilized Zirconia (YSZ)– CeO2 Hetero-Interfaces
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