Deposition of Biaxially Textured CeO2 Thin Films on Single Crystal and Textured Ni5W Substrates Using Solution Derived Method

CeO₂ is considered as one of the most lattice matched and chemically stable material for YBa₂Cu₃O_7-x coated conductors. In this paper, the epitaxial growth of CeO₂ thin films on both the single crystal and the cube textured Ni5W substrates by MOD method were investigated. Homogeneous and crack-free CeO₂ thin films with sharp biaxially texture were obtained using the precursors made by both cerium ethylhexanoate and cerium acetate precursor solutions, followed by post-annealing at 1000-1150degC under flowing Ar-4%H₂ gas. The effects of the various precursors and the annealing parameters on the orientation and the roughness of the CeO₂ films on textured Ni5W substrate were discussed in detail.