Large Energy Capacitive High-Entropy Lead-Free Ferroelectrics

Liang Chen; Huifen Yu; Jie Wu; Shiqing Deng; Hui Liu; Lifeng Zhu; He Qi; Jun Chen

doi:10.1007/s40820-023-01036-2

Nano-Micro Letters (Mar 2023)

Large Energy Capacitive High-Entropy Lead-Free Ferroelectrics

Liang Chen,
Huifen Yu,
Jie Wu,
Shiqing Deng,
Hui Liu,
Lifeng Zhu,
He Qi,
Jun Chen

Affiliations

Liang Chen: Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing
Huifen Yu: Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing
Jie Wu: Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing
Shiqing Deng: Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing
Hui Liu: Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing
Lifeng Zhu: School of Materials Science and Engineering, University of Science and Technology Beijing
He Qi: Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing
Jun Chen: Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing

DOI: https://doi.org/10.1007/s40820-023-01036-2
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 14

Abstract

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Highlights 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.

Published in Nano-Micro Letters

ISSN: 2311-6706 (Print); 2150-5551 (Online)
Publisher: SpringerOpen
Country of publisher: Germany
LCC subjects: Technology
Website: http://www.springer.com/40820

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