Synthesis of a New Ferroelectric Relaxor Based on a Combination of Antiferroelectric and Paraelectric Systems
Synthesis of a New Ferroelectric Relaxor Based on a Combination of Antiferroelectric and Paraelectric Systems
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基于反铁电和顺电系统组合的新型铁电弛豫剂的合成
DOI：
10.1021/acsami.2c02281
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发表时间：
2022
影响因子：
9.5
通讯作者：
Ying-Hao Chu
中科院分区：
文献类型：
--
作者：
Chun-Hao Ma;Yi-Kai Liao;Yunzhe Zheng;Shihao Zhuang;Si-Cheng Lu;Pao-Wen Shao;Jia-Wei Chen;Yu-Hong Lai;Pu Yu;Jia Mian Hu;Rong Huang;Ying-Hao Chu
弛豫型铁电储能系统由于其速度快、储能密度高而具有广阔的应用前景。在铁电体和弛豫铁电体的研究领域中，固溶体的概念被广泛采用，以改善铁电体的整体性能，获得上级性能。然而，反铁电材料与顺电材料之间的结合研究和讨论较少。在这项研究中，顺电性钛酸钡（BaHfO 3）和反铁电性砷酸铅（PbHfO 3）被选择来证明这样的组合。通过改变（Ba 1-xPbx）HfO 3固溶体的组成x从0到100%，观察到顺电到弛豫铁电体、铁电体和反铁电体的转变。值得注意的是，铁电相可以在没有原始铁电材料的情况下实现。这项研究创建了一个原始的固溶体系统，具有丰富的竞争相谱，并展示了一种设计弛豫铁电体用于储能应用及其他应用的方法。
Relaxor ferroelectric-based energy storage systems are promising candidates for advanced applications as a result of their fast speed and high energy storage density. In the research field of ferroelectrics and relaxor ferroelectrics, the concept of solid solution is widely adopted to modify the overall properties and acquire superior performance. However, the combination between antiferroelectric and paraelectric materials was less studied and discussed. In this study, paraelectric barium hafnate (BaHfO3) and antiferroelectric lead hafnate (PbHfO3) are selected to demonstrate such a combination. A paraelectric to relaxor ferroelectric, to ferroelectric, and to antiferroelectric transition is observed by varying the composition x in the (Ba1-xPbx)HfO3 solid solution from 0 to 100%. It is noteworthy that ferroelectric phases can be realized without primal ferroelectric material. This study creates an original solid solution system with a rich spectrum of competing phases and demonstrates an approach to design relaxor ferroelectrics for energy storage applications and beyond.