Enhanced electrostatic energy storage through a multi-element doping design

被引：12

作者：

Kang, S. S. ^{[1
]}

Yang, J. ^{[2
]}

Yang, B. B. ^{[3
,4
]}

Zhan, X. J. ^{[1
]}

Zhang, Y. M. ^{[1
]}

Dai, Y. Q. ^{[5
]}

Song, D. P. ^{[1
]}

机构：

[1] Jiangsu Univ Sci & Technol, Dept Phys, Zhenjiang 212003, Peoples R China

[2] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China

[3] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[4] Hefei Normal Univ, Sch Phys & Mat Engn, Anhui 230601, Hefei, Peoples R China

[5] Anyang Inst Technol, Coll Math & Phys, Anyang 455000, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2023年 / 122卷 / 04期

关键词：

FERROELECTRIC PROPERTIES; DENSITY; FILMS; PERFORMANCE; POLYMER;

D O I：

10.1063/5.0135242

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Element doping is a common and efficient method that can be used to substantially enhance dielectric energy storage performance. Despite continued efforts and progress in this field, investigations of the different effects of single- and multi-element doping on energy storage properties are lacking. In this work, we study the dependence of microstructures and energy storage properties on element doping using a BaBi4Ti4O15 material system. Our results reveal that an amorphous phase appears and the grain size decreases with an increasing number of doping elements. Such a scenario is conducive to improving the breakdown field strength and suppressing polarization-switching hysteresis. Therefore, we achieve an ultrahigh energy storage density of 76 J/cm(3) and an efficiency of 82.5% using the multi-element-doped composition. This work provides guidance for preparing high-energy-storage films.

引用

页数：6

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