Li Jie, Zhu Yang, Huang Pei-Zhi, Fu Da-Wei, Jia Qiang-Qiang, Lu Hai-Feng
Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P.R. China.
Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, P.R. China.
Chemistry. 2022 Oct 21;28(59):e202201005. doi: 10.1002/chem.202201005. Epub 2022 Aug 24.
Molecular ferroelastics have received particular attention for potential applications in mechanical switches, shape memory, energy conversion, information processing, and solar cells, by taking advantages of their low-cost, light-weight, easy preparation, and mechanical flexibility. The unique structures of organic-inorganic hybrid perovskites have been considered to be a design platform for symmetry-breaking-associated order-disorder in lattice, thereby possessing great potential for ferroelastic phase transition. Herein, we review the research progress of organic-inorganic hybrid perovskite ferroelastics in recent years, focusing on the crystal structures, dimensions, phase transitions and ferroelastic properties. In view of the few reports on molecular-based hybrid ferroelastics, we look forward to the structural design strategies of molecular ferroelastic materials, as well as the opportunities and challenges faced by molecular-based hybrid ferroelastic materials in the future. This review will have positive guiding significance for the synthesis and future exploration of organic-inorganic hybrid molecular ferroelastics.
分子铁弹性体因其低成本、重量轻、易于制备和机械柔韧性等优点，在机械开关、形状记忆、能量转换、信息处理和太阳能电池等潜在应用中受到了特别关注。有机-无机杂化钙钛矿的独特结构被认为是晶格中与对称性破缺相关的有序-无序的设计平台，因此具有铁弹性相变的巨大潜力。在此，我们综述了近年来有机-无机杂化钙钛矿铁弹性体的研究进展，重点关注晶体结构、维度、相变和铁弹性性能。鉴于基于分子的杂化铁弹性体的报道较少，我们期待分子铁弹性材料的结构设计策略，以及未来基于分子的杂化铁弹性材料面临的机遇和挑战。本综述将对有机-无机杂化分子铁弹性体的合成及未来探索具有积极的指导意义。
