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Utilizing Domain Engineering to Achieve High-Polarization Relaxor Ferroelectrics for Low-Consumption Ceramic Capacitors
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2024-07-23 , DOI: 10.1021/acs.inorgchem.4c02385
Zixiong Sun 1, 2, 3, 4 , Liming Diwu 1 , Yongming Hu 2 , Shibo Zhao 1 , Jingru Xu 1 , Ting Wang 3 , Yongping Pu 4 , Zhuo Wang 4
Affiliation  

This study focuses on incorporating NaNbO3 (NN) into the Ba0.85Ca0.15Zr0.9Ti0.1O3 (BCZT) lattice to form (1 – x)BCZT-xNN ceramics. Although antiferroelectricity was not observed, an observed domain-movement-diminishment behavior with increasing NN dopant induced the formation of high polarization walls (HPWs) between adjacent C-phases. The 0.90BCZT-0.10NN composition exhibited superior polarization compared to most BCZT-based ferroelectrics, as validated by mathematical derivation. Integration of these findings revealed a Wrec of 3.86 J/cm3 at 360 kV/cm, with a high Wrec/Eb ratio defining energy consumption efficiency in dielectric capacitors. This work introduces a novel approach to fabricating low-consumption dielectric capacitors. Additionally, a significantly high Wrec of 5.36 J/cm3 was achieved with an NN dopant concentration of 0.30.

中文翻译:


利用领域工程实现低功耗陶瓷电容器的高极化弛豫铁电体



本研究重点是将NaNbO 3 (NN)掺入Ba 0.85 Ca 0.15 Zr 0.9 Ti 0.1 O 3 (BCZT) 晶格形成 (1 – x)BCZT-xNN 陶瓷。尽管没有观察到反铁电性,但随着 NN 掺杂剂的增加,观察到的磁畴移动减少行为导致了相邻 C 相之间高极化壁 (HPW) 的形成。通过数学推导验证,与大多数 BCZT 基铁电体相比,0.90BCZT-0.10NN 组合物表现出优异的极化性能。综合这些发现显示,在 360 kV/cm 时,W rec 为 3.86 J/cm 3 ,并且具有较高的 W rec /E b 的显着高 W rec
更新日期:2024-07-25
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