| La掺杂对Bi4Ti3O12薄膜铁电性能的影响 |
| |
| 引用本文： | 郭冬云,王耘波,于 军,高俊雄,李美亚.La掺杂对Bi4Ti3O12薄膜铁电性能的影响[J].物理学报,2006,55(10):5551-5554. |
| |
| 作者姓名： | 郭冬云 王耘波 于 军 高俊雄 李美亚 |
| |
| 作者单位： | (1)华中科技大学电子科学与技术系，武汉 430074; (2)武汉大学物理科学与技术学院，武汉 430072; (3)武汉大学物理科学与技术学院，武汉 430072;华中科技大学电子科学与技术系，武汉 430074 |
| |
| 基金项目： | 湖北省自然科学基金(批准号：2003ABA061，2004ABA082)资助的课题. |
| |
| 摘 要： | 利用Sol-Gel法在Pt/Ti/SiO2/Si衬底上制备出Bi4Ti3O12和Bi3.25La0.75Ti3O12薄膜，研究了La掺杂对Bi4Ti3O12薄膜的晶体结构、铁电性能和疲劳特性的影响，发现La掺杂没有改变Bi4Ti3O12薄膜的基本晶体结构，并且提高了Bi4Ti3O12铁电薄膜的剩余极化值和抗疲劳性能，对La掺杂改善Bi4Ti3O12铁电薄膜性能的机理进行了讨论.
关键词：
铁电性能
4Ti3O12薄膜')" href="#">Bi4Ti3O12薄膜
3.25La0.75Ti3O12薄膜')" href="#">Bi3.25La0.75Ti3O12薄膜
sol-gel法
La掺杂
|
| 关 键 词： | 铁电性能 Bi4Ti3O12薄膜 Bi3.25La0.75Ti3O12薄膜 sol-gel法 La掺杂 |
| 收稿时间： | 11 28 2005 12:00AM |
| 修稿时间： | 2005-11-282006-02-16 |
Effect of La doping on ferroelectric properties of Bi4Ti3O12 thin film |
| |
| Guo Dong-Yun,Wang Yun-Bo,Yu Jun,Gao Jun-Xiong and Li Mei-Ya.Effect of La doping on ferroelectric properties of Bi4Ti3O12 thin film[J].Acta Physica Sinica,2006,55(10):5551-5554. |
| |
| Authors: | Guo Dong-Yun Wang Yun-Bo Yu Jun Gao Jun-Xiong and Li Mei-Ya |
| |
| Institution: | 1 Department of Physics, Wuhan University, Wuhan 430072, China; 2 Departmen of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
| |
| Abstract: | The Bi4Ti3O12 and Bi3.25La0.75Ti3O12 thin films are prepared on the Pt/Ti/SiO2/Si substrate using sol-gel method. The structures Pt/Bi3.25La0.75Ti3O12/Pt and Pt/Bi4Ti3O12/Pt are fabricated. The effects of La doping on the microstructures, and ferroelectric properties of Bi4Ti3O12 films are investigated. The 2Pr with test voltage 6V for the sample annealed at 700℃ increased from 12.5 μC/cm2 to 18.6 μC/cm2, and 2Vc is still 2.8 V when the La3+ ions occupy part of Bi3+ sites. The Bi3.25La0.75Ti3O12 films showed fatigue-free behavior. The mechanism of improvement of La-doped Bi4Ti3O12 ferroelectric thin films is discussed. |
| |
| Keywords: | ferroelectric properties Bi4Ti3O12 thin film Bi3 25La0 75Ti3O12 thin film sol-gel method La doping |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
