Enhanced energy storage in Sn-doped sodium bismuth titanate lead-free relaxor ferroelectric ceramics

被引：18

作者：

Li, Xiaowei ^{[1
,2
]}

Hao, Xihong ^{[2
]}

An, Shengli ^{[1
,2
]}

Li, Yong ^{[2
]}

Zhang, Qiwei ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

[2] Inner Mongolia Univ Sci & Technol, Baotou 014010, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2022年 / 33卷 / 08期

关键词：

PIEZOELECTRIC PROPERTIES; PEROVSKITE CERAMICS; DENSITY;

D O I：

10.1007/s10854-022-07714-y

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

SnO2-doped (Bi0.5Na0.5)(0.93)Ba0.07TiO3 (BNT7BT) ceramics were prepared via a conventional solid-state reaction method. Their phase structures, microstructures, and electrical properties were characterized in detail. SnO2 doping increased the lattice parameters and the average grain sizes. A certain amount of SnO2 could improve the dielectric properties, and tune the relaxor behavior of the BNT7BT; in this manner, low energy loss and high energy storage density were achieved. In particular, the BNT7BT sample with 0.2 mol% SnO2 exhibited a high recoverable energy density of 1.27 J cm(-3) and energy efficiency of 79.15%, which was mainly attributed to a large electric-field of 150 kV cm(-1) and a small remnant polarization of 1.15 mu C cm(-2). The results indicate that (Bi0.5Na0.5)(0.93)Ba0.07SnxTi1-xO3 ceramics can be a promising lead-free candidate for energy storage capacitors.

引用

页码：5265 / 5272

页数：8

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