Bi2Sr2CaCu2Oy Ultra-Thin Films Prepared by Metallo-Organic Deposition Method

Metallo-organic deposition is a non-vacuum technique for thin film fabrication which allows easy alteration of chemical components and no requirement of an expensive system. We report the preparation of ultra-thin film superconductors which are almost transparent with homogeneous surfaces by this method using carboxyrates solutions. By a careful pyrolysis and rapid thermal annealing technique, pure Bi2Sr2CaCu2Oy superconductors with c-axis strongly aligned perpendicular to the substrate surface were attained.