Yttrium acetate

Water-vapor assisted photochemical fabrication of YBa2Cu3O7-x superconducting films with high critical current density

Bian W, Chen Y, Li L, et al
Journal of Alloys and Compounds, 2017, 727: 1036-1043
A novel water-vapor assisted photochemical solution deposition method was put forward to fabricate high-performance YBa2Cu3O7-x(YBCO) superconducting films. The dip-coated gel films derived from YBCO solution with Y:Ba:Cu:F = 1:2:3:4 were exposed to deep UV light at a low temperature of 150 °C. During the UV exposure, water-vapor was artificially introduced to produce hydroxyl radicals (*OH) with strong oxidizing ability. After that, photon-activated amorphous oxide precursor films were obtained. It was found that the high-energy photons and *OH species promoted the cleavage of organic groups,...