气候变化领域集成服务门户(CCPortal): Giant piezoelectricity in oxide thin films with nanopillar structure

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DOI	10.1126/science.abb3209
	Giant piezoelectricity in oxide thin films with nanopillar structure
	Liu H.; Wu H.; Ong K.P.; Yang T.; Yang P.; Das P.K.; Chi X.; Zhang Y.; Diao C.; Wong W.K.A.; Chew E.P.; Chen Y.F.; Tan C.K.I.; Rusydi A.; Breese M.B.H.; Singh D.J.; Chen L.-Q.; Pennycook S.J.; Yao K.
发表日期	2020
ISSN	10959203
起始页码	292
结束页码	297
卷号	369 期号:6501
英文摘要	High-performance piezoelectric materials are critical components for electromechanical sensors and actuators. For more than 60 years, the main strategy for obtaining large piezoelectric response has been to construct multiphase boundaries, where nanoscale domains with local structural and polar heterogeneity are formed, by tuning complex chemical compositions. We used a different strategy to emulate such local heterogeneity by forming nanopillar regions in perovskite oxide thin films. We obtained a giant effective piezoelectric coefficient [Formula: see text] of ~1098 picometers per volt with a high Curie temperature of ~450°C. Our lead-free composition of sodium-deficient sodium niobate contains only three elements (Na, Nb, and O). The formation of local heterogeneity with nanopillars in the perovskite structure could be the basis for a general approach to designing and optimizing various functional materials. Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
语种	英语
来源机构	Science (New York, N.Y.)
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133321
推荐引用方式 GB/T 7714	Liu H.,Wu H.,Ong K.P.,et al. Giant piezoelectricity in oxide thin films with nanopillar structure[J]. Science (New York, N.Y.),2020,369(6501).
APA	Liu H..,Wu H..,Ong K.P..,Yang T..,Yang P..,...&Yao K..(2020).Giant piezoelectricity in oxide thin films with nanopillar structure.,369(6501).
MLA	Liu H.,et al."Giant piezoelectricity in oxide thin films with nanopillar structure".369.6501(2020).