Superior Thermal Stability of High Energy Density and Power Density in Domain-Engineered Bi0.5Na0.5TiO3-NaTaO3 Relaxor Ferroelectrics

被引:230
作者
Zhou, Xuefan [1 ]
Qi, He [1 ]
Yan, Zhongna [1 ]
Xue, Guoliang [1 ]
Luo, Hang [1 ]
Zhang, Dou [1 ]
机构
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
thermal stability; energy storage; charge discharge; Bi0.5Na0.5TiO3-NaTaO3; ceramic; polar nanoregions; FREE ANTIFERROELECTRIC CERAMICS; HIGH-TEMPERATURE DIELECTRICS; LEAD-FREE CERAMICS; STORAGE PROPERTIES; DISCHARGE PROPERTIES; EXCELLENT STABILITY; ELECTRIC-FIELD; CAPACITORS; PHASE; PERFORMANCE;
D O I
10.1021/acsami.9b13215
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Thermal-stable dielectric capacitors with high energy density and power density have attracted increasing attention in recent years. In this work, (1-x)Bi0.5Na0.5TiO3- -xNaTaO(3) [(1-x)BNT-xNT, x = 0-0.30] lead-free relaxor ferroelectric ceramics are developed for capacitor applications. The x = 0.20 ceramic exhibits superior thermal stability of discharged energy density (W-D) with a variation of less than 10% in an ultrawide temperature range of -50 to 300 degrees C, showing a significant advantage compared with the previously reported ceramic systems. The WD reaches 4.21 J/cm(3) under 38 kV/mm at room temperature. Besides, a record high of power density (P-D approximate to 89.5 MW/cm(3)) in BNT-based ceramics is also achieved in x = 0.20 ceramic with an excellent temperature insensitivity within 25-160 degrees C. The x = 0.20 ceramic is indicated to be an ergodic relaxor ferroelectric with coexisted R3c nanodomains and P4bm polar nanoregions at room temperature, greatly inducing large maximum polarization, maintaining low remnant polarization, and thus achieving high WD and PD. Furthermore, the diffuse phase transition from R3c to P4bm phase on heating is considered to be responsible for the superior thermal stability of the high WD and PD. These results imply the large potential of the 0.80BNT-0.20NT ceramic in temperature-stable dielectric capacitor applications.
引用
收藏
页码:43107 / 43115
页数:9
相关论文
共 53 条
[1]   High-temperature dielectrics in CaZrO3-modified Bi1/2Na1/2TiO3-based lead-free ceramics [J].
Acosta, Matias ;
Zang, Jiadong ;
Jo, Wook ;
Roedel, Juergen .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2012, 32 (16) :4327-4334
[2]   Phase transition sequence in sodium bismuth titanate observed using high-resolution x-ray diffraction [J].
Aksel, Elena ;
Forrester, Jennifer S. ;
Kowalski, Benjamin ;
Jones, Jacob L. ;
Thomas, Pam A. .
APPLIED PHYSICS LETTERS, 2011, 99 (22)
[3]   Defect dipole induced large recoverable strain and high energy-storage density in lead-free Na0.5Bi0.5TiO3-based systems [J].
Cao, Wenping ;
Li, Weili ;
Feng, Yu ;
Bai, Terigele ;
Qiao, Yulong ;
Hou, Yafei ;
Zhang, Tiandong ;
Yu, Yang ;
Fei, Weidong .
APPLIED PHYSICS LETTERS, 2016, 108 (20)
[4]   Improvement of dielectric and energy storage properties in Bi(Mg1/2Ti1/2)O3-modified (Na1/2Bi1/2)0.92Ba0.08TiO3 ceramics [J].
Chen, Pan ;
Chu, Baojin .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2016, 36 (01) :81-88
[5]   Concentration-dependent near-infrared quantum cutting in NaYF4:Pr3+, Yb3+ phosphor [J].
Chen, X. P. ;
Huang, X. Y. ;
Zhang, Q. Y. .
JOURNAL OF APPLIED PHYSICS, 2009, 106 (06)
[6]   Optimizing the defect chemistry of Na1/2Bi1/2TiO3-based materials: paving the way for excellent high temperature capacitors [J].
Hoefling, Marion ;
Steiner, Sebastian ;
An-Phuc Hoang ;
Seo, In-Tae ;
Froemling, Till .
JOURNAL OF MATERIALS CHEMISTRY C, 2018, 6 (17) :4769-4776
[7]   Enhanced energy-storage performance and dielectric temperature stability of (1-x)(0.65Bi0.5Na0.5TiO3-0.35Bi0.1Sr0.85TiO3)-xKNbO3 ceramics [J].
Hu, Bin ;
Fan, Huiqing ;
Ning, Li ;
Gao, Shang ;
Yao, Zhaojun ;
Li, Qiang .
CERAMICS INTERNATIONAL, 2018, 44 (09) :10968-10974
[8]   A high energy density relaxor antiferroelectric pulsed capacitor dielectric [J].
Jo, Hwan Ryul ;
Lynch, Christopher S. .
JOURNAL OF APPLIED PHYSICS, 2016, 119 (02)
[9]   On the phase identity and its thermal evolution of lead free (Bi1/2Na1/2)TiO3-6 mol% BaTiO3 [J].
Jo, Wook ;
Schaab, Silke ;
Sapper, Eva ;
Schmitt, Ljubomira A. ;
Kleebe, Hans-Joachim ;
Bell, Andrew J. ;
Roedel, Juergen .
JOURNAL OF APPLIED PHYSICS, 2011, 110 (07)
[10]   The tetragonal phase of Na0.5Bi0.5TiO3 -: a new variant of the perovskite structure [J].
Jones, GO ;
Thomas, PA .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 2000, 56 :426-430