LB膜法制备Y_2O_3掺杂的CeO_2超薄陶瓷膜的X光电子能谱(XPS)研究  

Fabrication of Y_2O_3-doped CeO_2 Ultrathin Film by Newly Developed Component-controllable Langmuir-blodgett Method

作　　者：吕卫星[1] 方堃[1] 郭卫华[1] 何平笙[1] 

机构地区：[1]中国科技大学高分子科学与工程系,安徽合肥230026

出　　处：《光谱学与光谱分析》2002年第1期16-19,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金资助项目 (2 99740 2 8)

摘　　要：利用LB膜技术发展了一种制备组分可控的超薄陶瓷膜的方法。以Ce,Y的 β 二酮络合物作为表面离子 ,替代传统的亚相离子 ,制得混合LB膜。并将它作为前驱物成功制得了Y2 O3 掺杂的CeO2 (YDC)超薄膜。XPS谱表明 。A fabrication technique of component-controllable multi-component ultrathin ceramic films has been developed by a promising LB method. The precursor of Y2O3-doped CeO2 (YDC) ultrathin film was prepared with cerium IV 2, 2, 6, 6-tetramethylheptanedionate (Ce(tmhd)(4)) and yttrium 2,2,6,6-tetramethylheptanedionate (Y(tmRd)(3)) as 'surface ions' on subphase surface instead of traditional 'subphase ions'. The YDC film was successfully fabricated after ultraviolet/ozone treatment and annealing in oxygen ambience with the precursor. XPS results proved that the surface of the fired film contained mainly Ce, O and Y and that the elemental ratio of Y/Ce was well controlled.

关 键 词：LB膜 制备 Y2O3 掺杂 CeO2 超薄陶瓷膜 XPS 氧化钇 二氧化铈 固体氧化物燃料电池 固体电解质材料 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TM2[一般工业技术—材料科学与工程]