Defects and Aliovalent Doping Engineering in Electroceramics

电瓷 兴奋剂 压电 铁电性 表征(材料科学) 纳米技术 材料科学 工程物理 电介质 物理 光电子学 制作 病理 复合材料 微加工 替代医学 医学
作者
Yu Feng,Jiagang Wu,Qingguo Chi,Weili Li,Yang Yu,Weidong Fei
出处
期刊:Chemical Reviews [American Chemical Society]
卷期号:120 (3): 1710-1787 被引量:149
标识
DOI:10.1021/acs.chemrev.9b00507
摘要

Since the positive influences of defects on the performance of electroceramics were discovered, investigations concerning on defects and aliovalent doping routes have grown rapidly in the fields of inorganic chemistry and condensed matter physics. In this article, we summarized the types of defects in electroceramics as well as characterization tools of defects and highlighted the effects of intrinsic and extrinsic defects on the material performances with the emphasis on dielectric, ferroelectric, and piezoelectric properties. We mainly introduced defect related theoretical simulation and experimental results in several typical incipient ferroelectrics, ferroelectrics, and antiferroelectrics. Hence, the influences of defects on the crystal lattice were summed up, and then the main physical mechanisms were highlighted. Particularly, the performance enhancements of aliovalently doped electroceramics were also evaluated and reviewed. Finally, the outlook and challenges were discussed on the basis of their current developments. This article covers not only an overview of the state-of-the-art advances of defects and aliovalent doping routes in electroceramics but also the future prospects that may open another window to tune the electrical performance of electroceramics via intentionally introducing certain defects.
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