Enhanced Flexoelectricity in Barium Titanate-Cellulose Composite Thin Films
作者机构：Chemomechanics and Intelligent Media LaboratoryState Key Laboratory for Strength and Vibration of Mechanical StructuresSchool of Aerospace EngineeringXi’an Jiaotong UniversityXi’an710049China
出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)
年 卷 期：2024年第37卷第4期
页 面：521-527页
核心收录：
学科分类：0710[理学-生物学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0822[工学-轻工技术与工程]
基 金：supported by the National Natural Science Foundation of China(Grant Nos.12272285,12322205,and 12122209) the Young Elite Scientist Sponsorship Program by CAST(Grant No.2019QNRC001) the 1000-Plan Program of Shaanxi Province the Young Talent Support Plan of Xi’an Jiaotong University
主 题：Flexoelectricity Cellulose BaTiO_(3) Composite Thin films
摘 要：Biopolymers,the potential flexoelectric materials,are environment-friendly,degradable,lightweight,cost-effective,and possess remarkable processing properties catering to the requirements of advanced ***,the flexoelectric coefficient of biopolymers is normally much weaker than that of ceramic materials,limiting their potential applications for designing high-performance green electromechanical coupling *** improve the flexoelectric response in biopolymers,we composited barium titanate(BTO)with 2,2,6,6-tetramethylpiperidine-1-oxyl-oxidized cellulose nanofibrils(TOCNF)to enhance the flexoelectric response of *** to the high permittivity and flexoelectric effect of BTO,the relative dielectric constant and flexoelectric coefficient of 33.3 wt%BTO-TOCNF films reached 30.94@1 kHz and 50.05±1.88 nC/m@1 Hz,which were almost 172 times and 27 times higher than those of TOCNF,*** composite thin film contains high dielectric constant and flexoelectric coefficient,as well as excellent *** study provided a straightforward and efficient method for improving the flexoelectric effect of biopolymers,and demonstrated its great potential applications in flexoelectric-based devices.
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