Enhanced electrostatic energy-storage performances in the high-entropy Bi0.5Na0.5TiO3-based ceramic capacitors

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-06-16 DOI:10.1063/5.0275797

Wenjie Xie, Wenjing Yu, Yang Yang, Yuanyuan Gong, Huajie Luo, Ji Zhang, Shan-Tao Zhang, Yaojin Wang

{"title":"Enhanced electrostatic energy-storage performances in the high-entropy Bi0.5Na0.5TiO3-based ceramic capacitors","authors":"Wenjie Xie, Wenjing Yu, Yang Yang, Yuanyuan Gong, Huajie Luo, Ji Zhang, Shan-Tao Zhang, Yaojin Wang","doi":"10.1063/5.0275797","DOIUrl":null,"url":null,"abstract":"As one of the core components in electronic devices, dielectric capacitors with superior electrostatic energy-storage performances have captured great interest recently. In this Letter, the B-site high-entropy end-member Ba(Ti0.2Zr0.2Hf0.2Fe0.2Nb0.2)O3 was introduced into Bi0.5Na0.5TiO3 (BNT) ceramics to improve the entropy configuration. Accordingly, the coexisting PNRs with R3c and P4bm, enhanced dielectric relaxation, and decreased grain size were obtained in entropy modified BNT ceramics, leading to slim ferroelectric hysteresis (P–E) loops with reduced Pr and small hysteresis, as well as promoted electric breakdown strength (Eb). Resultantly, the optimal ceramics presented a high recoverable energy density (Wrec) of 7.1 J/cm3 and a high efficiency (η) of 89.5% under 360 kV/cm, along with excellent frequency (10–100 Hz), cycling (1–106), and temperature (25–160 °C) stability. This work demonstrates the practicability of high-entropy engineering in seeking for high-performance dielectric capacitors for advanced high/pulsed power devices.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"3 1","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1063/5.0275797","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

As one of the core components in electronic devices, dielectric capacitors with superior electrostatic energy-storage performances have captured great interest recently. In this Letter, the B-site high-entropy end-member Ba(Ti0.2Zr0.2Hf0.2Fe0.2Nb0.2)O3 was introduced into Bi0.5Na0.5TiO3 (BNT) ceramics to improve the entropy configuration. Accordingly, the coexisting PNRs with R3c and P4bm, enhanced dielectric relaxation, and decreased grain size were obtained in entropy modified BNT ceramics, leading to slim ferroelectric hysteresis (P–E) loops with reduced Pr and small hysteresis, as well as promoted electric breakdown strength (Eb). Resultantly, the optimal ceramics presented a high recoverable energy density (Wrec) of 7.1 J/cm3 and a high efficiency (η) of 89.5% under 360 kV/cm, along with excellent frequency (10–100 Hz), cycling (1–106), and temperature (25–160 °C) stability. This work demonstrates the practicability of high-entropy engineering in seeking for high-performance dielectric capacitors for advanced high/pulsed power devices.

查看原文本刊更多论文

高熵bi0.5 na0.5 tio3基陶瓷电容器的静电储能性能增强

介质电容器作为电子器件的核心部件之一，以其优异的静电储能性能引起了人们的广泛关注。本文将b位高熵端元Ba(Ti0.2Zr0.2Hf0.2Fe0.2Nb0.2)O3引入Bi0.5Na0.5TiO3 （BNT）陶瓷中，以改善其熵构型。因此，在熵改性的BNT陶瓷中，获得了与R3c和P4bm共存的pnr，增强了介电弛豫，减小了晶粒尺寸，导致铁电迟滞（P-E）回路变细，Pr减小，迟滞小，并提高了电击穿强度（Eb）。结果表明，该陶瓷在360 kV/cm下具有7.1 J/cm3的高可回收能量密度（Wrec）和89.5%的高效率（η），并具有良好的频率（10-100 Hz）、循环（1-106）和温度（25-160℃）稳定性。这项工作证明了高熵工程在为先进的高/脉冲功率器件寻找高性能介电电容器方面的实用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.