PREPARATION OF ANHYDROUS METAL-ORGANIC PRECURSORS AND USE THEREOF FOR THE DEPOSITION AND GROWTH OF SUPERCONDUCTING TAPES AND LAYERS

摘要

The invention relates to a novel method of producing metal-organic precursors of oxides by reaction with anhydrides of said starting oxides. The inventive method has a very wide area of application and can be used to prepare all types of oxide films (ferroelectric, ferromagnetic, piezoelectric, etc.). The invention also relates to a method of producing anhydrous metal-organic YBCO precursors and to the use thereof in the production of layers of said superconducting material. Intermediate purification steps can be eliminated owing to the low water content of precursors prepared in accordance with the invention. Said novel precursors enable the pyrolysis time required for the decomposition thereof to be reduced, such that productivity in relation to the production of superconducting tapes and layers is significantly increased while the quality and performance thereof are maintained.