文献类型：期刊文献

中文题名：BaTiO_3超薄膜的制备和性能研究

英文题名：Study on the Preparation and Properties of BaTiO_3 Ultrathin Film

作者：刘成林[1];李远光[2];张兆奎[2]

机构：[1]盐城师范学院物理系,江苏盐城224002;[2]华东理工大学物理系,上海200237

年份：2004

卷号：23

期号：6

起止页码：4

中文期刊名：电子元件与材料

外文期刊名：Electronic Components And Materials

收录：CSTPCD;;北大核心:【北大核心2000】；CSCD:【CSCD_E2011_2012】；

基金：江苏省教育厅自然科学研究项目(02KJB140008)

语种：中文

中文关键词：钛酸钡超薄膜;制备;结构;性能

外文关键词：BaTiO3 ultrathin film; preparation; structure; properties

摘要：用LB(Langmuir Blodgett)膜技术制备的BaTiO3超微粒-硬脂酸复合LB膜,热处理后形成BaTiO3超薄膜.用紫外-可见光吸收光谱、电子自旋共振、红外光谱和X射线衍射对BaTiO3超薄膜进行研究.BaTiO3超薄膜在190～287nm范围内具有明显的吸收,而在299 nm附近有强烈的吸收;超薄膜中的BaTiO3微粒存在氧空位,分子内部结构和晶体结构都发生了明显的变化.
BaTiO3 ultrafine particles/stearic acid composite film was prepared by LB-film technology. After the composite films heat-treatment, the BaTiO3 ultrathin films were formed. The properties of BaTiO3 ultrathin film were investigated with UV-vis absorption, electron spin resonance, IR and X-ray diffraction. The results show that the obvious absorption of BaTiO3 ultrathin film was between 190 nm to 287 nm, the violence absorption was at 299 nm. In the ultrathin film, BaTiO3 particles existed oxygen-vacancy, the molecule interior structure and crystal structure of BaTiO3 particles had obvious change.