Enhanced energy storage efficiency of Ba0.8Sr0.2TiO3 ceramics modified by BiTaO3

被引：5
|
作者：
Zhao, Hong [1 ]
Duan, Xiaoyang [1 ]
Yu, Taolin [1 ]
Xu, Dan [1 ]
Zhao, Wenjie [2 ]
机构：
[1] Harbin Univ Sci & Technol, Sch Sci, Harbin 150080, Peoples R China
[2] Harbin Univ Sci & Technol, Higher Educ Key Lab Measuring & Control Technol &, Harbin 150080, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2023年 / 360卷
基金：
中国国家自然科学基金;
关键词：
Ba0; 8Sr0; 2TiO3; ceramics; BTA doping; Ferroelectric properties; Energy storage; DIELECTRIC-PROPERTIES; DENSITY;
D O I：
10.1016/j.ssc.2022.115050
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Lead-free (1-x)Ba0.8Sr0.2TiO3-xBiTaO3 (BST-xBTA) ceramics were prepared via a solid-state reaction process. The effect of BTA addition on the energy storage properties of BST ceramics was investigated. The pure perovskite phases were found in the BST-xBTA ceramic samples as x <= 0.12. With the increasing BTA content, the maximum breakdown strength (Eb) reached 130 kV/cm at x = 0.12, twice that of the undoped samples. The large Eb and slim ferroelectric loops of the 0.88BST-0.12BTA ceramics indicated an advantageous energy density of Wrec-0.526 J/cm3 and a high energy efficiency of eta-98% at 130 kV/cm. The low dielectric loss and high eta make this ceramic system a promising material applying pulsed-powder devices.
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页数：6
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