Co-regulation of phase-domain structure in Bi0.5Na0.5TiO3-based ferroelectrics to optimize energy storage properties

被引：3

作者：

Chen, Xiaoyu ^{[1
]}

Pu, Yongqing ^{[1
]}

Fan, Baoyan ^{[1
,2
]}

Zhang, Chao ^{[3
]}

Xiao, Wenrong ^{[3
]}

Yu, Bo ^{[1
]}

Zhang, Haibo ^{[4
]}

Tian, Shenghui ^{[1
]}

Jiang, Shenglin ^{[3
]}

Liu, Xiaoyan ^{[1
]}

机构：

[1] Chongqing Univ Sci & Technol, Coll Met & Mat Engn, Chongqing Key Lab Nano Micro Composites & Devices, Chongqing 401331, Peoples R China

[2] Hubei Univ, Sch Phys & Elect Sci, Hubei Key Lab Ferro & Piezoelect Mat & Devices, Wuhan 430062, Peoples R China

[3] Huazhong Univ Sci & Technol, Engn Res Ctr Funct Ceram MOE, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[4] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2023年 / 49卷 / 23期

基金：

中国国家自然科学基金;

关键词：

BNT-Based ceramics; Domain structure; Built-in voltage; Energy storage; CERAMICS; DENSITY;

D O I：

10.1016/j.ceramint.2023.09.098

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Sodium bismuth titanate (BNT)-based dielectric capacitors with excellent energy storage performance play an important role in electronics industry. (Sr1.05Bi0.3)ScO3 (SBS) is introduced into 0.85Bi0.5Na0.5TiO3-0.15NaNbO3 (BNT-NN) to achieve co-regulation of phase and domain structure. With the introduction of SBS, the dominated pseudocubic phase accompanied by a small percentage of rhombohedral phase are tend to form, and thus induce nanodomain structure with high-density domain walls. Under the excitation of a bias voltage, the induced nanodomains are easier to switch and effectively reduce the residual polarization. Additionally, the homogeneous nanodomains with high-density domain walls will promote large negative built-in voltage which are favorable to rise of breakdown field strength, and thus, optimize the energy storage performance. The co regulation of phase-domain structure provides an idea for designing ferroelectrics with good energy storage performance.

引用

页码：37720 / 37728

页数：9

共 47 条

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