| 弛豫铁电单晶的多功能特性及其器件应用 |
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| 引用本文： | 罗豪甦,焦杰,陈瑞,朱荣峰,张章,徐嘉林,赵静,王西安,林迪,陈建伟,狄文宁,鲁丽,朱莉莉.弛豫铁电单晶的多功能特性及其器件应用[J].人工晶体学报,2021,50(5):783-802. |
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| 作者姓名： | 罗豪甦 焦杰 陈瑞 朱荣峰 张章 徐嘉林 赵静 王西安 林迪 陈建伟 狄文宁 鲁丽 朱莉莉 |
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| 作者单位： | 中国科学院上海硅酸盐研究所,上海 201800 |
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| 基金项目： | 国家自然科学基金(52032012,61634007,11827808,51831010);上海市青年科技英才扬帆计划(20YF1455700);中国科学院福建物质结构研究所重点项目(FJCXY18040205);中国科学院国际伙伴计划(121631KYSB20190026) |
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| 摘 要： | 以Pb(Mg1/3Nb2/3)O3-PbTiO3(PMN-PT或PMNT)为代表的弛豫铁电单晶具有远高于常用锆钛酸铅Pb(ZrxTi1-x)O3(PZT)陶瓷的压电性能,引起了基于新一代压电单晶的功能器件研究热潮。本研究团队在国际上率先利用Bridgman方法生长出了大尺寸、高质量PMN-PT等弛豫铁电单晶(d33～2 000 pC/N,k33～92%),并对PMN-PT等弛豫铁电单晶的生长、多层次微观结构和性能调控进行了多方面的研究,发现弛豫铁电单晶不仅具有超高压电性能,还具有突出的热释电性能、电光性能以及与磁致伸缩材料复合形成磁电复合材料的超高磁电耦合性能。本研究团队多年来一直在努力推动弛豫铁电单晶在医用超声换能器、热释电红外探测器、电光器件、磁电型弱磁传感器等各种器件的应用研究。本文主要总结了弛豫铁电单晶的多功能特性,并介绍了本研究团队在弛豫铁电单晶器件应用上的研究结果。
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| 关 键 词： | 弛豫铁电单晶 PMN-PT 器件应用 超声换能器 热释电红外探测器 电光器件 弱磁传感器 |
| 收稿时间： | 2021-04-13 |
Multifunctional Properties and Device Applications of the Relaxor Ferroelectric Single Crystals |
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| LUO Haosu,JIAO Jie,CHEN Rui,ZHU Rongfeng,ZHANG Zhang,XU Jialin,ZHAO Jing,WANG Xi'an,LIN Di,CHEN Jianwei,DI Wenning,LU Li,ZHU Lili.Multifunctional Properties and Device Applications of the Relaxor Ferroelectric Single Crystals[J].Journal of Synthetic Crystals,2021,50(5):783-802. |
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| Authors: | LUO Haosu JIAO Jie CHEN Rui ZHU Rongfeng ZHANG Zhang XU Jialin ZHAO Jing WANG Xi'an LIN Di CHEN Jianwei DI Wenning LU Li ZHU Lili |
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| Affiliation: | Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | The relaxor ferroelectric single crystals, such as Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT or PMNT), exhibit excellent piezoelectric performances, which are much higher than the conventional lead zirconate titanate Pb(ZrxTi1-x)O3 (PZT) ceramics. The ultrahigh piezoelectric performances of the PMN-PT relaxor ferroelectric single crystals induce the research upsurge of the next generation of piezoelectric devices such as ultrasonic transducers. Our research team was the first time to use the Bridgman method to grow the large size and high quality PMN-PT relaxor ferroelectric single crystals (d33~2 000 pC/N, k33~92%) in the world. The growth, hierarchical structure and properties of the PMN-PT relaxor ferroelectric single crystals were systematically and deeply studied in our research team in the past 20 years. Different from the traditional perovskite ferroelectric materials, the PMN-PT relaxor ferroelectric single crystals have hierarchical microstructures, including monoclinic phase structure (MA, MB, MC), domain configuration, nano-regions (PNRs), polarization rotation, resulting in the related research on the origin of ferroelectric materials with high piezoelectricity and the development of the fundamental theory on the ferroelectric physics. It was also found that the PMN-PT crystals exhibit outstanding pyroelectric properties, electro-optic (EO) properties and super high magnetoelectric coupling properties in the magnetoelectric composites composed with the magnetostrictive materials. Based on this, our team is also striving to promote the applications of relaxor ferroelectric single crystals on medical ultrasonic transducers, pyroelectric infrared (PIR) detectors, EO devices, magnetoelectric weak magnetic sensors and other devices. The research results of multifunctional properties and device application of the relaxor ferroelectric single crystals in our team about 20 years are summarized in this paper. |
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| Keywords: | relaxor ferroelectric single crystal PMN-PT device application ultrasonic transducer pyroelectric infrared detector electro-optic device weak magnetic sensor |
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