Tunable antiferroelectric-like polarization behavior and enhanced energy storage characteristics in symmetric BaTiO_(3)/BiFeO_(3)/BaTiO_(3) heterostructure  

作　　者：Ying Wang Hanfei Zhu Hongyu Luo Jianting Li Yu Huan Yuyao Zhao Li Li Hongbo Cheng Chao Liu Qingguo Chi Jun Ouyang 

机构地区：[1]School of Chemistry and Chemical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan,250353,China [2]School of Mechanical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan,250353,China [3]Key Laboratory of Engineering Dielectrics and Its Application(Ministry of Education),Harbin University of Science and Technology,Harbin,150080,China [4]School of Material Science and Engineering,University of Jinan,Jinan,250022,China [5]State Key Laboratory of Metal Matrix Composites,School of Material Sciences and Engineering,Shanghai Jiao Tong University,Shanghai,200240,China [6]Key Laboratory of Key Film Materials&Application for Equipments(Hunan Province),Hunan Provincial Key Laboratory of Thin Film Materials and Devices,School of Material Sciences and Engineering,Xiangtan University,Xiangtan,411105,China

出　　处：《Journal of Materiomics》2024年第6期1290-1298,共9页无机材料学学报（英文）

基　　金：The authors acknowledge the financial support of the National Natural Science Foundation of China(NSFC)(Grant Nos.52002192,51772175,52072150);the Natural Science Foundation of Shandong Province(Grant Nos.ZR2020QE042,ZR2022ZD39,ZR2022QB138,ZR2022ME031);the Science,Education and Industry Integration Pilot Projects of Qilu University of Technology(Shandong Academy of Sciences)(Grant Nos.2022PY055,2022GH018);H.Zhu is grateful for the support of Key Laboratory of Engineering Dielectrics and Its Application(Harbin University of Science and Technology),Ministry of Education(Grant No.KFM202404);J.Ouyang is grateful for the support of the Jinan City Science and Technology Bureau(Grant No.2021GXRC055);the Education Department of Hunan Province/Xiangtan University(Grant No.KZ0807969);as well as the seed funding for top talents at Qilu University of Technology(Shandong Academy of Sciences).

摘　　要：The excellent energy storage performances of dielectric materials,a high energy density and efficiency,the stability in a wide range of temperature,frequency and cycling time,are surely desirable for the energy storage devices.A trade-off relationship between polarization and breakdown strength,however,limits the enhancement of energy storage properties of dielectric materials.To effectively boost the energy density and efficiency of dielectric capacitors,by inserting a BiFeO_(3) layer into the BaTiO_(3) film in present case,the symmetric BaTiO_(3)/BiFeO_(3)/BaTiO_(3) tri-layer film heterostructure with antiferroelectric-like characteristics was constructed based on the dual-interlayer coupling effect,what's more,its antiferroelectric-like characteristics will evolve with electric field.Such the tunable polarization behavior endows it with an enhanced maximum polarization but a reduced remnant one,a delayed saturation of polarization and a high breakdown strength,which are synergistically accountable for a large energy density(Wrec∼109 J/cm^(3))and a high efficiency(η∼82.6%),together with the good thermal(TR∼200℃,ΔWrec<3%&Δη<10%)and frequency(50 Hz–10 kHz,ΔWrec<7%&Δη<13%)stabilities,particularly an outstanding cycling reliability(10^(9) cycles,both ΔWrec and Δη<1%).Hence these findings can provide some innovative ideas for enriching the performance tuning of ferroelectrics,especially in enhancing their energy storage characteristics.

关 键 词：Antiferroelectric-like Tri-layer film heterostructure Tunable polarization behavior Interlayer coupling Energy storage 

分 类 号：TQ17[化学工程—硅酸盐工业]