Seed layer, solution concentration and thickness effects on CSD-derived La2Zr2O7 buffer layers for coated conductors
2007
Abstract La 2 Zr 2 O 7 /NiW buffer layers as very promising buffer layers for coated conductors were fabricated by chemical solution deposition using cheap precursors, La-acetate and Zr-(IV) n -propoxide (70% w/w in n -propanol). The effects on the orientation and microstructure of La 2 Zr 2 O 7 buffer layers, including seed layer, thickness and solution concentration, were investigated. The results showed that insertion of a seed layer could obviously improve the crystallization and orientation, and decrease of single layer thickness could also obviously improve the in-plane orientation. The results of all metalorganic depositions derived YBCO/CeO 2 /La 2 Zr 2 O 7 /NiW showed that the prepared La 2 Zr 2 O 7 buffer layers were suitable for coated conductors using all metalorganic depositions.
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