Asymmetric Electrostrain/Electrobending in Piezoelectric Ceramics: Role of Defect Dipoles or Oxygen Vacancies.

Jie Wang, Geng Huangfu, Hongjie Zhang, Tiannan Yang, Zhenhua Ma, Jingsheng Chen, Yun Liu, Yiping Guo

Abstract read

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Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Jie WangState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.

Geng HuangfuDepartment of Materials Science and Engineering, National University of Singapore, Singapore, Singapore.

Hongjie ZhangState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.

Tiannan YangInterdisciplinary Research Center, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China.

Zhenhua MaInterdisciplinary Research Center, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China.

Jingsheng ChenDepartment of Materials Science and Engineering, National University of Singapore, Singapore, Singapore.ORCID https://orcid.org/0000-0003-3188-2803

Yun LiuResearch School of Chemistry / College of Science, the Australian National University, Canberra, Australia.ORCID https://orcid.org/0000-0002-5404-3909

Yiping GuoState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.ORCID https://orcid.org/0000-0003-0251-450X

Funding

National Key Research and Development Program of China 2022YFA1205300National Key Research and Development Program of China 2022YFA1205304National Natural Science Foundation of China 52032012National Natural Science Foundation of China 62474107

6 · The paper itself

Abstract

Atomic-scale defects in piezoelectric ceramics significantly influence their macroscopic electric field-induced deformation responses, which are critical for developing advanced piezoelectric actuators. Although the recently revealed giant electrostrain and electrobending have been attributed to defect dipoles or oxygen vacancies, deciphering their precise atomic configurations and specific roles remains a great challenge. In this study, the microscopic defect configurations and mesoscopic domain switching behaviors of different piezoelectric ceramics with macroscopic asymmetric electrostrain/electrobending are visualized. We demonstrate that the long-range migration of oxygen vacancies alters surface domain switching and induces poling-independent electrobending deformation in BaTiO

Indexed as

defect dipoleelectrobendingelectrostrainoxygen vacancypiezoelectric ceramic

Identifiers

PMID42107074

DOI10.1002/advs.75649

PMCPMC13335970

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.