在分子层面设计的光敏有机-无机混合铁电
Wei-Jian Xu1,2,3, Konstantin Romanyuk2,4, José M G Martinho5
1MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
Journal of the American Chemical Society
|September 14, 2020
概括
研究人员开发了一种新型光响应分子铁电, (Me2NH2) [NaFe ((CN) 5 ((NO)) ],可以在铁电状态之间进行光诱导的切换. 这一突破为设计先进的光刺激铁电材料提供了新的途径.
科学领域:
- 材料科学
- 固态化学
- 晶体学
背景情况:
- 分子铁电对于先进材料至关重要, 但控制它们的光反应性质是具有挑战性的.
- 设计和合成光响应分子铁电需要精确的分子构建块.
研究的目的:
- 报告一个新的混合高温铁电材料具有光响应能力.
- 为了证明分子固体中铁电和元稳定状态之间的光诱导切换.
主要方法:
- 通过组装无机化离子和有机离子进行晶体工程.
- 使用压响应力显微镜观察铁电域和极化切换的特征.
- 照相异构研究涉及化接体的辐射.
主要成果:
- 一种新的混合铁电, (Me2NH2) [NaFe ((CN)) 5 ((NO)) ],用低于408K的铁电合成.
- 通过压响应力显微镜证实了180度铁电域和偏振切换.
- 尼特联体的光异构化诱导了铁电和元稳定状态之间的可逆光切换.
结论:
- 这项研究提出了一种具有可控制光的新型分子铁电.
- 这项工作为下一代光刺激铁电材料提供了新的设计策略.
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