Enhanced electrostatic energy storage through a multi-element doping design

被引：13
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.
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页数：6
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