山东科学2026，Vol.39Issue(2)：27-38,12.DOI:10.3976/j.issn.1002-4026.2025167
KTN铁电单晶压电性能的研究进展
Research progress on the piezoelectric properties of potassium tantalate niobate-based ferroelectric single crystals
摘要
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.关键词
钽铌酸钾/铁电单晶/压电性能/四方相/铁电畴Key words
potassium tantalate niobate/ferroelectric single crystal/piezoelectric properties/tetragonal phase/ferroelectric domain分类
数理科学引用本文复制引用
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):27-38,12.基金项目
国家自然科学基金面上项目(52372007) （52372007）
山东省泰山学者人才工程项目(tstp20231230) （tstp20231230）
