KTN铁电单晶压电性能的研究进展

doi:10.3976/j.issn.1002-4026.2025167

山东科学 ›› 2026, Vol. 39 ›› Issue (2): 27-38.doi: 10.3976/j.issn.1002-4026.2025167

KTN铁电单晶压电性能的研究进展

张园园^1a(), 李淑焕², 朱迎旭^1a, 吕宪顺^1a, 王旭平^1a^,^1b^,^1c^,^*()

¹ 齐鲁工业大学(山东省科学院)a.新材料研究所; b.山东省碳化硅材料重点实验室; c.先进光电功能材料与器件山东省工程研究中心, 山东济南 250014
² 山东农业工程学院食品科学与工程学院, 山东济南 250100

收稿日期:2025-12-01 修回日期:2025-12-22 出版日期:2026-04-20 上线日期:2026-04-03
通信作者: *王旭平(1977—),男,博士,研究员,研究方向为光转换材料开发与器件研制。E-mail: wangxp@sdas.org
作者简介:张园园(1984—),女,博士,副研究员,研究方向为无铅压电晶体材料。E-mail: zhangyuanyuan@sdas.org
基金资助:
国家自然科学基金面上项目(52372007);山东省泰山学者人才工程项目(tstp20231230)

Research progress on the piezoelectric properties of potassium tantalite niobate-based ferroelectric single crystals

ZHANG Yuanyuan^1a(), LI Shuhuan², ZHU Yingxu^1a, LÜ Xianshun^1a, WANG Xuping^1a^,^1b^,^1c^,^*()

¹ a. Advanced Materials Institute; b. Shandong Provincial Key Laboratory of Silicon Carbide Material; c. Shandong Engineering Research Center of Advanced Optoelectronic Functional Materials and Devices, Qilu University of Technology (Shandong Academy of Science), Jinan 250014, China
² College of Food Science and Engineering, Shandong Agriculture and Engineering University, Jinan 250100, China

Received:2025-12-01 Revised:2025-12-22 Published:2026-04-20 Online:2026-04-03

摘要/Abstract

摘要：

钙钛矿钽铌酸钾K(Ta_1-_xNb_x)O₃(KTN)铁电单晶在过去几十年中得到了广泛研究,这得益于其大压电常数、高相变温度以及无毒的化学成分等优势。随着对生长过程的深入探索,研究人员采用顶部籽晶熔体法生长的单晶质量得到改善,尺寸不断增大。近期研究报道了四方相KTN单晶压电常数达到505 pC/N、机电耦合系数达到0.75。在15 kV/cm的电场下实现了0.32%的大单极应变。本文系统综述了压电KTN基单晶的研究进展,涵盖其生长工艺,提高机电性能手段如离子掺杂和工程畴等领域。文中探讨了高质量单晶生长和提高其机电性能的关键技术路径,并指出当前研究存在的挑战,同时对未来发展前景作出展望。

关键词: 钽铌酸钾, 铁电单晶, 压电性能, 四方相, 铁电畴

Abstract:

Potassium tantalate niobate (KTN)-based ferroelectric single crystals with a perovskite structure have been extensively studied over the past few decades due to their advantages such as high piezoelectric constants, high phase transition temperatures, and nontoxic chemical compositions. With a deeper understanding of crystal growth processes and post-growth treatments, researchers have improved crystal quality and continuously increased crystal sizes using the top-seeded solution growth method. Recent studies have reported a piezoelectric constant exceeding 505 pC/N and an electromechanical coupling factor of 0.75 for tetragonal KTN single crystals. A high unipolar strain of 0.32% was achieved under an electric field of 15 kV/cm. This paper systematically reviews the research progress of piezoelectric properties of KTN-based ferroelectric single crystals, encompassing their growth techniques and approaches for enhancing electromechanical properties, such as ion doping and domain structures. Key technical approaches such as domain engineering and those for reducing growth defects and enhancing electromechanical performance are discussed. In addition, the current research challenges are identified, and future development prospects are outlined.

Key words: potassium tantalate niobate, ferroelectric single crystal, piezoelectric properties, tetragonal phase, ferroelectric domain

中图分类号:

0731

张园园, 李淑焕, 朱迎旭, 吕宪顺, 王旭平. KTN铁电单晶压电性能的研究进展[J]. 山东科学, 2026, 39(2): 27-38.

ZHANG Yuanyuan, LI Shuhuan, ZHU Yingxu, LÜ Xianshun, WANG Xuping. Research progress on the piezoelectric properties of potassium tantalite niobate-based ferroelectric single crystals[J]. Shandong Science, 2026, 39(2): 27-38.

图/表 9

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参考文献 46

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组分	T_o-t/℃	T_c/℃	极化方向	畴态	尺寸/ (mm×mm×mm)	d₃₃ (pC·N^-1)	ε₃₃ (室温)	E_C/ (kV·cm^-1)	Pr/ (μC·cm^-2)	k₃₃	k_t	文献
(K_0.95Li_0.05)(Ta_0.40Nb_0.60)O₃	-73	177	[001]_c	单畴	—	400	371	—	—	0.75	—	[26]
KTa_0.53Nb_0.47O₃	2	78	[001]_c	单畴	18×18×35	132	435	4.6	—	0.69	0.618	[27]
Fe:KTN	10	95.9	[001]_c	单畴	12×12×20	137	1 201	3.72	—	0.503	0.471	[22]
Sn:KTN	-29~-17	32~45	[001]_c	单畴	25×25×18	373	5 206	—	—	0.49	0.28	[23]
K(Ta_0.54Nb_0.46)O₃	-28	75	[001]_c	单畴	25×25×37	137	493	2.9	4.7	0.679	0.642	[21]
Cu:K(Ta_0.52Nb_0.48)O₃	9	83	[001]_c	单畴	30×25×20	505	1617	2	17.5	0.672	0.515	[24]
K(Ta_0.59Nb_0.41)O₃	-24	39	[011]_c	多畴	39×29×36	156	2337	1.25	3.87	0.435	0.245	[25]

KTN铁电单晶压电性能的研究进展

Research progress on the piezoelectric properties of potassium tantalite niobate-based ferroelectric single crystals

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