MOD-Derived YBa2Cu3O7-δ Thin FilmsUsing a Fast Pyrolysis Process
In the present work,a fast pyrolysis process is developed for YBa2Cu3O7-δ (YBCO) films preparation with trifluroacetates metalorganic deposition technique (TFA-MOD).The decomposition of TFA salts as well as the surface morphology of pyrolyzed films is investigated with respect to the pyrolysis temperature and its heating rate.Two typical surface morphologies for the pyrolyzed films,being smooth or buckled,are revealed subjecting to the heating rate and film thickness,which related to the subsequent YBCO films property.Smooth and wrinkle-free pyrolyzed films are achieved by using this fast pyrolysis process with a heating rate as high as 5℃/min.The final crystallized YBCO films exhibit good performances with the superconducting transition temperature of 91 K and critical current density of 2.0 MA/cm2 at 77 K,suggesting a rapid,promising MOD route available for scale-up preparation of YBCO coated conductors.
TFA-MOD YBCO Pyrolysis Wrinkle
Wenjia Hao Yuming Lu Chuanyi Bai Zhiyong Liu Bo Gao Chuanbing Cai
Research Center for Superconductors and Applied Technologies, Shanghai University, 200444,Shanghai, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
267-274
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）