有机-无机压电材料TMCM-MnCl_(3)的研究  

Study on Organic-Inorganic Piezoelectric Material TMCM-MnCl_(3)

作　　者：廖擎玮 司维 王志豪 侯薇 仲超[1] 秦雷[1] LIAO Qingwei;SI Wei;WANG Zhihao;HOU Wei;ZHONG Chao;QIN Lei(Key Laboratory of Sensors,Beijing Information Science&Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学传感器重点实验室,北京100192

出　　处：《压电与声光》2022年第4期543-546,556,共5页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金重点资助项目(U2006218)。

摘　　要：有机-无机压电材料是一种分子铁电体,具有柔性、结构灵活、易成膜、全液相合成及环保节能等优点,可满足新一代薄膜器件及可穿戴设备的需求。该文以三甲基卤代甲基铵(TMXM,X=F,Cl,Br)为有机部分,MnCl_(2)为无机部分,通过溶液蒸发法制备了具有钙钛矿分子结构的有机-无机压电材料三甲基氯三氯化锰(TMCM-MnCl_(3)),并对其分子结构组成、压电、热学、声学及铁电性进行表征。结果表明,TMCM-MnCl_(3)的压电常数为106 pC/N,居里温度为130℃,声阻抗值约为16.5 MRayl,低于压电陶瓷PZT-4(大于33 MRayl),具有广阔的应用前景。The organic-inorganic piezoelectric material is a kind of molecular ferroelectric with the advantages of flexibility,flexible structure,easy film formation,solution phase synthesis,environmental protection and energy saving,etc.,and can meet the needs of a new generation of thin film devices and wearable devices.In this paper,the organic-inorganic piezoelectric material TMCM-MnCl_(3) with perovskite molecular structure were prepared by the solution evaporation method with trimethyl halomethyl ammonium(TMXM,X=F,Cl,Br)as the organic part and MnCl_(2) as the inorganic part.The molecular structure,piezoelectric,thermal,acoustic and ferroelectric properties were characterized.The results show that the piezoelectric constant d_(33) is 106 pC/N,the Curie temperature is 130℃,and the acoustic impedance is about 16.5 MRayl,which is lower than that of the piezoelectric ceramics PZT-4(great than 33 MRayl),and it has broad application prospects.

关 键 词：压电材料 铁电体 钙钛矿 声阻抗 

分 类 号：TN384[电子电信—物理电子学]