Shao Ting, Ni Hao-Fei, Su Chang-Yuan, Jia Qiang-Qiang, Xie Li-Yan, Fu Da-Wei, Lu Hai-Feng
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.
Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P.R. China.
Chemistry. 2022 Dec 9;28(69):e202202533. doi: 10.1002/chem.202202533. Epub 2022 Oct 19.
Organic-inorganic Hybrid (OIH) materials for multifunctional switchable applications have attracted enormous attention in recent years due to their excellent optoelectronic properties and good structural tunability. However, it still remains challenging to fabricate one simple OIH compound with multi-functionals properties, such as dielectric switching, thermochromic properties, semiconductor characteristics and ferroelasticity. Under this context, we successfully synthesized [2-(2-fluorophenyl)ethan-1- ammonium] SnBr (compound 1), which has a higher phase transition temperature of 427.7 K. Additionally, it exhibits a semiconducting property with an indirect band gap of 2.36 eV. Combining ferroelastic, narrow band gap, thermochromic, and dielectric properties, compound 1 can be considered as a rarely reported multi-functional ferroelastic material, which is expected to give inspiration for broadening the applications in the smart devices field.
近年来，用于多功能可切换应用的有机-无机杂化（OIH）材料因其优异的光电性能和良好的结构可调性而备受关注。然而，制备一种具有多种功能特性（如介电开关、热致变色特性、半导体特性和铁弹性）的简单OIH化合物仍然具有挑战性。在此背景下，我们成功合成了[2-(2-氟苯基)乙铵]SnBr（化合物1），其具有427.7 K的较高相变温度。此外，它表现出半导体特性，间接带隙为2.36 eV。结合铁弹性、窄带隙、热致变色和介电特性，化合物1可被视为一种罕见的多功能铁弹性材料，有望为拓宽智能设备领域的应用提供灵感。
