Piezoelectric Activity in Perovskite Ferroelectric Crystals
Piezoelectric Activity in Perovskite Ferroelectric Crystals
复制标题
钙钛矿铁电晶体的压电活性
DOI：
10.1109/tuffc.2014.006660
复制
发表时间：
2015-01-01
影响因子：
3.6
通讯作者：
Zhang, Shujun
中科院分区：
文献类型：
--
作者：
Li, Fei;Wang, Linghang;Zhang, Shujun
超导铁电体（PF）已经成为用于各种机电应用的主要压电材料，例如超声换能器、传感器和致动器等。本文介绍了PF晶体的发展，重点介绍了晶体生长和压电活性。负责PF的高压电活性的关键因素（即，相变、单斜相、畴尺寸、弛豫分量、掺杂剂和压电各向异性）进行了综述和讨论。概述了目前对压电薄膜高压电性的认识。在本文的最后，提出了进一步提高压电纤维压电性的潜在途径。
Perovskite ferroelectrics (PFs) have been the dominant piezoelectric materials for various electromechanical applications, such as ultrasonic transducers, sensors, and actuators, to name a few. In this review article, the development of PF crystals is introduced, focusing on the crystal growth and piezoelectric activity. The critical factors responsible for the high piezoelectric activity of PFs (i.e., phase transition, monoclinic phase, domain size, relaxor component, dopants, and piezoelectric anisotropy) are surveyed and discussed. A general picture of the present understanding on the high piezoelectricity of PFs is described. At the end of this review, potential approaches to further improve the piezoelectricity of PFs are proposed.