High Critical Current Density of YBa 2 Cu 3 O 7−x Superconducting Films Prepared through a DUV-assisted Solution Deposition Process
作者： Yuanqing Chen , Weibai Bian , Wenhuan Huang , Xinni Tang , Gaoyang Zhao
DOI: 10.1038/SREP38257
关键词:
摘要: Although the solution deposition of YBa2Cu3O7−x (YBCO) superconducting films is cost effective and capable large-scale production, further improvements in their superconductivity are necessary. In this study, a deep UV (DUV) irradiation technique combined with low-fluorine process was developed to prepare YBCO films. An acrylic acidic group as chelating agent used precursor solution. The highly sensitive DUV light at 254 nm significantly absorbed light. coated gel exposed decomposed 150 °C copper aggregation prevented. promoted removal carbon residue other by-products films, increased density enhanced crystallinity Using F/Ba = 2, thicknesses 260 nm critical current densities nearly 8 MA/cm2 were produced on LaAlO3 (LAO) substrates.
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