Preparation and characterization of Y-doped CaZrO3 electrolyte film on a porous SrTi0.8Fe0.2O3-Δ substrate

Abstract

Fabrication, characterization and electrochemical performance of a dense Y-doped CaZrO3 electrolyte film deposited on a porous SrTi0.8Fe0.2O3-δ substrate is investigated in the present work. The film is prepared by a multi-step chemical solution deposition using ethanol-based solution of precursors. The applied deposition technique allows continuous obtaining electrolyte films on the porous electrodes. Low viscosity and high wetting ability of the precursor solution promote formation of a composite layer, with interpenetrating networks of electrode and electrolyte phases, at the film/substrate interface that should enhance the electrochemical performance of the cell. Interdiffusion between the film and substrate materials is revealed.