化学溶液法制备GdBa2Cu3O7-x超导薄膜的研究  

Preparation of GdBa2Cu3O7-x Superconducting Films by Chemical Solution Deposition

作　　者：何东 童靓 徐文博 胡文鹏 程大伟 徐重建 HE Dong;TONG Liang;XU Wenbo;HU Wenpeng;CHENG Dawei;XU Chongjian(Bengbu Investment Group Co., Ltd., Bengbu 233000, China;School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China;The Fifth Electronics Research Institute of the Ministry of Industry and Information Technology, Guangzhou 510610, China)

机构地区：[1]蚌埠投资集团有限公司,蚌埠233000 [2]合肥工业大学化学与化工学院,合肥230009 [3]工业和信息化部电子第五研究所,广州510610

出　　处：《人工晶体学报》2020年第10期1814-1818,共5页Journal of Synthetic Crystals

摘　　要：将乙酸盐溶解在丙酸中获得无氟的前驱溶液,利用化学溶液沉积(CSD)法在LaAlO3(LAO)(100)单晶衬底上外延生长出GdBa2Cu3O7-x(GdBCO)超导薄膜。研究了不同退火温度下获得的薄膜的物相、取向、形貌以及超导电性。结果表明:在817℃下合成的GdBCO薄膜具有很好的双轴取向,其超导转变温度(Tc)为92.5 K;在77 K和自磁场下,临界电流密度(Jc)达到1.33 MA/cm2。Acetate was dissolved in propionic acid solution to prepare all fluorine-free GdBCO precursor solution.Afterwards,it is explored that the epitaxial growth of GdBa2Cu3O7-x(GdBCO)superconducting thin films on LaAlO3(LAO)(100)single crystal substrates using all-fluoride-free chemical solution deposition(CSD)method.The phases,orientation,morphology and superconducting property of the films synthesized at different annealing temperatures were studied.It is observed that GdBCO films manufactured at 817℃have excellent biaxial orientations,and the Tc of the film annealed at 817℃is 92.5 K,its critical current density(Jc)reaches 1.33 MA/cm2 at 77 K and self-magnetic field.

关 键 词：GdBa2Cu3O7-x 超导薄膜 乙酸盐 化学溶液沉积(CSD) 

分 类 号：TM26[一般工业技术—材料科学与工程]