Ceramics (Sep 2022)
Electrical Conductivity of Thin Film SrTi<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3−δ</sub>-Supported Sr<sub>0.98</sub>Zr<sub>0.95</sub>Y<sub>0.05</sub>O<sub>3−δ</sub> Electrolyte
Abstract
Thin films of Sr0.98Zr0.95Y0.05O3−δ (SZY) electrolyte were grown on porous supporting SrTi0.8Fe0.2O3−δ electrodes by the chemical solution deposition method from a low-viscous solution of inorganic salts. The films were characterized by X-ray diffraction and scanning electron microscopy. The gas-tightness of the films was evaluated using the differential-pressure method. The across-plane electrical conductivity of 1 mm thick SZY film was measured by impedance spectroscopy and compared to that of a massive ceramic sample. The revealed difference in electrical properties of the film and massive SZY samples indicates that diffusional interaction between the film and the substrate influences the performance of the supported electrolyte.
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