Deposition and Characterization of Metal Propionate Derived Epitaxial YBa2Cu3O7-x Films for Coated Conductor Fabrication

作者：Armenio Achille Angrisani^*; Celentano Giuseppe; Rufoloni Alessandro; Vannozzi Angelo; Augieri Andrea; Galluzzi Valentina; Mancini Antonella; Ciontea Lelia; Petrisor Traian; Contini Giorgio; Davoli Ivan

来源：IEEE Transactions on Applied Superconductivity, 2009, 19(3): 3204-3207.

DOI：10.1109/TASC.2009.2019210

• Low-fluorine precursors
• modified TFA-MOD method
• YBCO

A new modified TFA-MOD method for the YBa2Cu3O7-x (YBCO) deposition, using only barium trifluoroacetate, is presented. The yttrium and copper trifluoroacetates were replaced by the alcoholic solutions of Cu and Y acetates dispersed in propionic acid to prepare a stable coating solution. Due to the smaller amount of evolved hydrofluoric acid, this method permits the shortening of the pyrolysis time by a factor 4, with respect to conventional trifluoroacetate metal organic deposition (TFA-MOD) method. The X-ray photoelectron spectroscopy (XPS) analyses, performed on a pyrolyzed sample, showed the complete decomposition of precursors. The as obtained films exhibit good morphological, structural and superconducting properties with T-c (R = 0) greater than 90 K. Transport measurements at different temperatures and applied magnetic fields

• 出版日期2009-6