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Fabrication of Y2O3-stablized ZrO2 Ultrathin Film by Newly Developed Component-Controllable Langmuir-Blodgett Method
Zou Ganga,Fang Kun,Song Haizheng,He Pingsheng*
Author NameAffiliationE-mail
Zou Ganga Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026  
Fang Kun Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026  
Song Haizheng Department of material Science and Engineering, University of Science and Technology of China, Hefei 230026  
He Pingsheng* Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026 hpsm@ustc.edu.cn  
Abstract:
A fabrication technique of component-controllable multi-component ultra thin ceramic films has been developed by a promising LB method. The precursorofY2O3-stablized ZrO2(YSZ) ultra thin film was prepared with ZirconiumIV2, 2,6,6-tetramethylheptanedionate (Zr(tmhd)4) and yttrium 2,2,6,6-tetramethylheptanedionate (Y(tmhd)3) as surface ions on the subphase surface instead of traditional subphase ions. Zr(tmhd)4) and Y(tmhd)3can combine arachidic acid (AA) to forma uniformmixed monolayeron pure water subphase. The π~Aisotherms indicate that the mixed monolayer with a mixed ratio of Zr(tmhd)4∶Y(tmhd)3∶AA=4.5∶1∶11 on pure water is very stable and can be successfully transferred onto the silica substrate by LB technique. Y-type LB films were fabricated. The YSZ films were obtained through a combination of room temperature Ultra-Violet/ozone (UVO) decomposition and annealing treatments at a high temperature. The X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) measurements demonstrate that the fina films are single YSZ phase with a fluorite cubic structure and the components of the films can be accurately controlled through the whole process.
Key words:  Zirconium IV 2,2,6,6-tetramethylheptanedionate, Yttrium III 2,2,6,6-tetramethylheptanedionate, Langmuir-Blodgett method, Ultrathin ceramic nanofilms
FundProject:国家自然科学基金资助项目(29974028).
由组分可控的LB膜前驱物法制备Y2O3稳定立方相ZrO2的超薄陶瓷膜
邹纲,方堃,宋海政,何平笙*
摘要:
由有机LB膜技术发展了一种制备组分、厚度可控的无机超薄陶瓷膜的方法.以Zr、 Y的β-二酮络合物的作为"表面离子"代替传统的亚相离子,沉积它们与花生酸的混合LB膜.并将它作为前驱物,经臭氧处理和热处理,成功制得了Y2O3稳定的立方相ZrO2超薄膜(YSZ).用X射线衍射(XRD)、 X射线光电子能谱(XPS)等手段研究了YSZ薄膜的相结构和其组成.结果表明,超薄陶瓷膜中Zr与Y的含量比率控制得很好,且形成Y2O3稳定的立方相ZrO2.说明这种方法可以成功地用来制备组分和膜厚均可控的纳米陶瓷膜.
关键词:  锆β-二酮络合物  钇β-二酮络合物  LB膜技术  纳米陶瓷膜
DOI:10.1088/1674-0068/15/5/396-400
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