在单元同体基质有机晶体中多通道控制多铁性
Wei-Qiang Liao1, Yu-Ling Zeng1, Yuan-Yuan Tang1
1Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China.
Journal of the American Chemical Society
|December 20, 2021
概括
研究人员开发了可光学控制的新有机光色多重铁. 这些材料具有可切换的铁电和铁弹性,为先进的电子应用提供了潜力.
科学领域:
- 材料科学
- 有机化学
- 固态物理
背景情况:
- 铁电/铁弹性材料通过电场/机械应力表现出可切换的极化/应变.
- 尽管光辐射具有优势,但对晶体材料中这些特性的光学控制尚未得到充分研究.
研究的目的:
- 引入新型单组件的同体光色多重铁.
- 为了证明这些有机晶体的铁电/铁弹性属性的光学切换.
主要方法:
- 合成 (R) -和 (S) -N-3,5-di-tert-butylsalicylidene-1-4-bromophenylethylamine (SA-Ph-Br(R) 和SA-Ph-Br(S)) 的方法
- 在336K的铁电/铁弹性相变的研究
- 诱导和逆转结构光异构的光辐射实验 (和转基因形式).
- 声阻的测量.
主要成果:
- 合成了两种新的有机单组分同体光色多种铁素.
- 光辐射可通过结构光异构化在几秒钟内逆转自发偏振/应变.
- 这些材料具有比PVDF低的超低声阻 (~2.42 × 10^6 kg·s^-1·m^-2).
- 通过电场,应力和光场实现了多个铁子序列的同时控制.
结论:
- 这项工作证明了单元有机晶体的铁电/铁弹性特性.
- 这些材料具有可调的多铁行为和低声阻抗,适合生物集成应用.
- 潜在的应用包括与全有机电子和人体组织兼容的多通道数据存储和光电子.
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