An organic-inorganic hybrid thermochromic ferroelastic with multi-channel switches  

作　　者：Yipiao Zeng Junchao Liu Lin Zhou Xin Deng Wenli Yang Xin Yan Yanling Luo Xuan Zhu Xiaoyun Huang Xianjiang Song Yuanyuan Tang 

机构地区：[1]Ordered Matter Science Research Center and School of Chemistry and Chemical Engineering,Nanchang University,Nanchang 330031,China

出　　处：《Chinese Chemical Letters》2023年第9期305-309,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.21975114,11904151 and 22105094)。

摘　　要：Multifunctional switchable materials are attracting tremendous interest because of their great application potential in signal processing,information encryption,and smart devices.Here,we reported an organic-inorganic hybrid thermochromic ferroelastic crystal,[TMIm][CuCl_(4)](TMIm=1,1,3,3-tetramethylimidazolidinium),which undergoes two reversible phase transitions at 333 K and 419 K,respectively.Intriguingly,these three phases experience a remarkable ferroelastic-paraelastic-ferroelastic(2/m-mmm-2/m)transition,which remains relatively unexplored in ferroelastics.Moreover,the ferroelastic domains can be simultaneously switched under temperature and stress stimuli.Meanwhile,[TMIm][CuCl_(4)]exhibits thermochromic phenomenon,endowing it with extra spectral encryption possibilities during information processing.Combined with dielectric switching behavior,[TMIm][Cu Cl_(4)]are promising for practical applications in memory devices,next-generation sensors,and encryption technology.

关 键 词：Organic-inorganic hybrid compounds Ferroelastic domains THERMOCHROMISM Multi-channel switches BISTABILITY 

分 类 号：TB34[一般工业技术—材料科学与工程]