Large piezoelectric properties in KNN-based lead-free single crystals grown by a seed-free solid-state crystal growth method

被引：23

作者：

Yang, Jie ^{[1
,2
]}

Zhang, Faqiang ^{[1
]}

Yang, Qunbao ^{[1
]}

Liu, Zhifu ^{[1
]}

Li, Yongxiang ^{[1
]}

Liu, Yun ^{[3
]}

Zhang, Qiming ^{[4
,5
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Inorgan Funct Mat & Devices, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Australian Natl Univ, Res Sch Chem, Canberra, ACT 2601, Australia

[4] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

[5] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 18期

基金：

中国国家自然科学基金; 澳大利亚研究理事会;

关键词：

TEMPLATED GRAIN-GROWTH; FREE CERAMICS; BEHAVIOR; PHASE; EVOLUTION; NA;

D O I：

10.1063/1.4948642

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report lead-free single crystals with a nominal formula of (K0.45Na0.55)(0.96)Li0.04NbO3 grown using a simple low-cost seed-free solid-state crystal growth method (SFSSCG). The crystals thus prepared can reach maximum dimensions of 6mm x 5mm x 2mm and exhibit a large piezoelectric coefficient d(33) of 689 pC/N. Moreover, the effective piezoelectric coefficient d(33)*, obtained under a unipolar electric field of 30 kV/ cm, can reach 967 pm/ V. The large piezoelectric response plus the high Curie temperature (T-C) of 432 degrees C indicate that SFSSCG is an effective approach to synthesize high-performance lead-free piezoelectric single crystals. Published by AIP Publishing.

引用

页数：4

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