Large Energy Capacitive High-Entropy Lead-Free Ferroelectrics

被引：0
|
作者：
Liang Chen
Huifen Yu
Jie Wu
Shiqing Deng
Hui Liu
Lifeng Zhu
He Qi
Jun Chen
机构：
[1] University of Science and Technology Beijing,Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry
[2] University of Science and Technology Beijing,School of Mathematics and Physics
[3] University of Science and Technology Beijing,School of Materials Science and Engineering
来源：
Nano-Micro Letters | 2023年 / 15卷
关键词：
High-entropy; Energy storage; Lead-free; Relaxor ferroelectrics; Capacitors;
D O I：
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中图分类号：
学科分类号：
摘要：
Ultrahigh energy storage density of ~ 13.8 J cm−3 and large efficiency of ~ 82.4% are achieved in high-entropy lead-free relaxor ferroelectrics via high-entropy strategy, realizing nearly ten times growth.Outstanding energy storage properties are attributed to the enhanced random field and breakdown field, decreased nanodomain sizes, strong multiple local distortions coexisting in-phase and anti-phase oxygen octahedron tilts.Evolution of energy storage performance and domain structure with the increase in configuration entropy is systematically revealed for the first time.
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