{"title":"Enhancement of energy storage properties of BNBT ceramics modified by tungsten bronze-structured Sr5LaTi3Ta7O30","authors":"Wanying Cai, Jiwen Xu, Ling Yang, Fei Shang, Changrong Zhou, Huarui Xu","doi":"10.1007/s10854-025-14578-5","DOIUrl":null,"url":null,"abstract":"<div><p>Ceramics as the dielectric layer of capacitors are the key materials for obtaining high-performance capacitors. Composite materials are an important method for modifying ceramics. The tungsten bronze-structured Sr<sub>5</sub>LaTi<sub>3</sub>Ta<sub>7</sub>O<sub>30</sub> (SLTT)-doped 0.93Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-0.07BaTiO<sub>3</sub> (BNBT) perovskite ceramics were proposed. The phase transition of the composite ceramics from ferroelectric to relaxor ferroelectric was achieved at room temperature. An excellent efficiency of 94.04% was obtained at 0.2 mol SLTT and 100 kV/cm. An excellent recoverable energy storage density of 1.21 J/cm<sup>3</sup> was obtained at 0.11 mol SLTT and 100 kV/cm. Therefore, the composite ceramics constructed by perovskite and tungsten bronze phases have great application prospects in the field of high-power pulse capacitors.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 9","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-025-14578-5","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Ceramics as the dielectric layer of capacitors are the key materials for obtaining high-performance capacitors. Composite materials are an important method for modifying ceramics. The tungsten bronze-structured Sr5LaTi3Ta7O30 (SLTT)-doped 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 (BNBT) perovskite ceramics were proposed. The phase transition of the composite ceramics from ferroelectric to relaxor ferroelectric was achieved at room temperature. An excellent efficiency of 94.04% was obtained at 0.2 mol SLTT and 100 kV/cm. An excellent recoverable energy storage density of 1.21 J/cm3 was obtained at 0.11 mol SLTT and 100 kV/cm. Therefore, the composite ceramics constructed by perovskite and tungsten bronze phases have great application prospects in the field of high-power pulse capacitors.
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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