化学溶液方法制备涂层导体CexLa1-xO2薄膜的研究  

Study on CexLa_(1-x)O_2 Buffer Layer used in Coated Conductors by Chemical Solution Method

作　　者：赵跃[1] 索红莉[1] GRIVEL Jean-Claude 叶帅[1] 刘敏[1] 马麟[1] 周美玲[1] 

机构地区：[1]北京工业大学材料科学与工程学院,北京100124 [2]Riso National Laboratory, DK-4000 Roskilde, Denmark

出　　处：《无机材料学报》2009年第6期1201-1204,共4页Journal of Inorganic Materials

基　　金：国家重大基础研究发展规划(2006CB601005);国家教委全国百篇优秀博士论文专项基金(200331);北京工业大学111人才工程基金;国家自然科学基金(50771003)

摘　　要：获得多功能单一过渡层是简化涂层导体多层结构的主要课题之一.采用化学溶液方法制备La掺杂CeO2过渡层,研究La掺杂量对CeO2薄膜表面形貌和双轴取向生长的影响.结果表明La掺杂量为10mol%的薄膜表面平整致密,且能保持锐利的双轴织构.通过多次涂敷工艺,获得具有120nm厚的Ce0.9La0.1O2过渡层.采用脉冲激光沉积方法在Ce0.9La0.1O2/NiW结构模板层上沉积了YBCO超导薄膜,其起始临界转变温度达到90.5K.这表明采用化学溶液方法制备Ce0.9La0.1O2薄膜是一种有前景的简化涂层导体多层结构的方法.Developing multi-functional single buffer layer is one of the most important challenges for simplification of coated conductors configuration.La-doped CeO2 films were prepared by chemical solution method.And surface morphology and texture quality of the La-doped CeO2 films were investigated in details.The results show that the as-obtained pore-free Ce0.9La0.1O2 film are epitaxially deposited on the textured NiW substrate.The 120nm thickness Ce0.9La0.1O2 film is obtained though multi-coating route.The YBCO film with Tco=90.5K,which is deposited on Ce0.9La0.1O2/NiW metallic template by PLD method.It suggects that Ce0.9La0.1O2 film prepared by chemical solution route have a promising prospect for the simplification of coated conductors configuration.

关 键 词：涂层导体 化学溶液方法 掺杂CeO2薄膜 织构 

分 类 号：TM26[一般工业技术—材料科学与工程]