{"title":"High energy storage performance of (Na0.5Bi0.5)TiO3 thin film induced by stress engineering","authors":"Yichen Li, Yao Yao, Lei Zhou, Jing Wang, Lei Zhao","doi":"10.1016/j.jmat.2024.100971","DOIUrl":null,"url":null,"abstract":"Relaxor ferroelectrics are the primary candidates for high-performance energy storage dielectric capacitors. Here, stress engineering, which was realized by optimizing the lattice mismatch between (Na<sub>0.5</sub>Bi<sub>0.5</sub>)TiO<sub>3</sub> film and SrRuO<sub>3</sub>/(La<sub>0.5</sub>Sr<sub>0.5</sub>)CoO<sub>3</sub> bottom electrodes, was used to enhance the energy storage performance of (Na<sub>0.5</sub>Bi<sub>0.5</sub>)TiO<sub>3</sub> relaxor ferroelectric film. As a result, in-plane compressive stress caused by the lattice mismatch between (Na<sub>0.5</sub>Bi<sub>0.5</sub>)TiO<sub>3</sub> film and (La<sub>0.5</sub>Sr<sub>0.5</sub>)CoO<sub>3</sub> bottom electrode leads to a large <em>W</em><sub>rec</sub> of 45.7 J/cm<sup>3</sup> with <em>η</em> of 79.4% at 2000 kV/cm in (Na<sub>0.5</sub>Bi<sub>0.5</sub>)TiO<sub>3</sub> film, which is 54.4% higher than that of (Na<sub>0.5</sub>Bi<sub>0.5</sub>)TiO<sub>3</sub> film with in-plane tensile stress. In addition, the <em>W</em><sub>rec</sub> of (Na<sub>0.5</sub>Bi<sub>0.5</sub>)TiO<sub>3</sub> film with in-plane compressive stress shows good thermal stability and frequency stability with variations of 5.8% at 30–120 °C and 6.9% at 0.2–20.0 kHz. This work may provide some new perspectives for the design of dielectric capacitors with high energy storage performance.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"250 1","pages":""},"PeriodicalIF":8.4000,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materiomics","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jmat.2024.100971","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Relaxor ferroelectrics are the primary candidates for high-performance energy storage dielectric capacitors. Here, stress engineering, which was realized by optimizing the lattice mismatch between (Na0.5Bi0.5)TiO3 film and SrRuO3/(La0.5Sr0.5)CoO3 bottom electrodes, was used to enhance the energy storage performance of (Na0.5Bi0.5)TiO3 relaxor ferroelectric film. As a result, in-plane compressive stress caused by the lattice mismatch between (Na0.5Bi0.5)TiO3 film and (La0.5Sr0.5)CoO3 bottom electrode leads to a large Wrec of 45.7 J/cm3 with η of 79.4% at 2000 kV/cm in (Na0.5Bi0.5)TiO3 film, which is 54.4% higher than that of (Na0.5Bi0.5)TiO3 film with in-plane tensile stress. In addition, the Wrec of (Na0.5Bi0.5)TiO3 film with in-plane compressive stress shows good thermal stability and frequency stability with variations of 5.8% at 30–120 °C and 6.9% at 0.2–20.0 kHz. This work may provide some new perspectives for the design of dielectric capacitors with high energy storage performance.
期刊介绍：
The Journal of Materiomics is a peer-reviewed open-access journal that aims to serve as a forum for the continuous dissemination of research within the field of materials science. It particularly emphasizes systematic studies on the relationships between composition, processing, structure, property, and performance of advanced materials. The journal is supported by the Chinese Ceramic Society and is indexed in SCIE and Scopus. It is commonly referred to as J Materiomics.
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