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化学溶液沉积法制备的Bi4Ti3O12铁电薄膜的电学性能研究
Electrical Properties of Bi4Ti3O12 Thin Films Prepared by Chemical Solution Deposition Technique
【摘要】 采用化学溶液沉积工艺在电阻率为 6~ 9Ω·cm的n -Si(10 0 )衬底上生长Bi4Ti3O1 2 铁电多晶膜 ,研究了薄膜的电学性能 ,结果表明在 6 50℃下退火 1h得到的Bi4Ti3O1 2 薄膜具有良好的介电和铁电性能 ,其介电常数ε =12 9,剩余极化Pr=5.1μC/cm2 ,矫顽电场Ec=96kV/cm。
【Abstract】 Polycrystalline Bi 4Ti 3O 12 thin films were prepared by chemical solution deposition technique on n-Si(100) (ρ =6~9Ω·cm).The dielectric constant and dielectric loss at 100kHz were 129 and 0.06 respectively for the films annealed at 650℃ for 1h,its remanent polarization (P r) was 5.1μC/cm 2,coercive field (E c) was 96kV/cm.
【关键词】 化学溶液沉积;
铁电薄膜;
介电常数;
电滞回线;
【Key words】 CSD; ferroelectric thin film; dielectric constant; hysteresis loops;
【Key words】 CSD; ferroelectric thin film; dielectric constant; hysteresis loops;
- 【文献出处】 功能材料 ,JOURNAL OF FUNCTIONAL MATERIALS , 编辑部邮箱 ,2000年S1期
- 【分类号】TM223
- 【被引频次】8
- 【下载频次】113