在广泛的温度范围内,无添加 PZT 膜的强大的能量储存属性
Xiaojun Qiao1, Huiyi Zhang2, Tao Guo2
1Science and Technology on Electronic Test and Measurement Laboratory, School of Semiconductor and Physics, North University of China, Taiyuan 030051, China.
ACS omega
|February 12, 2024
概括
化PZT抗铁电 (AFE) 膜显示出出色的能量储存密度和温度稳定性. 这些AFE膜显示出静电储能器件的巨大潜力,特别是在低温下.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
背景情况:
- 抗铁电 (AFE) 薄膜以其高能量储存密度和热稳定性而闻名.
- 这些特性使它们成为静电储能应用的有希望的候选者.
研究的目的:
- 在广泛的温度范围内 (73-533 K) 调查Lad-doped PZT AFE薄膜的储能特性.
- 了解温度对这些膜中的极化行为和相位过渡的影响.
主要方法:
- 使用sol-gel方法制备拉多PZT AFE薄膜.
- 作为温度的函数,对储能特性和电行为进行表征.
- 对极化动态和相位过渡效应的分析.
主要成果:
- 极化行为受到电场和温度的显著影响.
- 温度上升导致和极化下降,这是由于反铁电到铁电相位过渡.
- 在低温 (<273.15 K) 中,Pb0.97La0.02 (Zr0.95Ti0.05) O3膜的能量储存密度达到约5.84 J/cm3.
结论:
- 拉多的PZT AFE薄膜显示出有前途的储能能力.
- 它们的温度依赖性突出了它们对脉冲电源应用的潜力,特别是在冷环境中.
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