Practical high-performance lead-free piezoelectrics: structural flexibility beyond utilizing multiphase coexistence

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dc.contributor.authorLiu, Qen_AU
dc.contributor.authorZhang, Yen_AU
dc.contributor.authorGao, Jen_AU
dc.contributor.authorZhou, Zen_AU
dc.contributor.authorYang, Den_AU
dc.contributor.authorLee, KYen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorHinterstein, Men_AU
dc.contributor.authorWang, Ken_AU
dc.contributor.authorZhang, Xen_AU
dc.contributor.authorLi, Len_AU
dc.contributor.authorLi, JFen_AU
dc.date.accessioned2025-01-09T23:54:44Zen_AU
dc.date.available2025-01-09T23:54:44Zen_AU
dc.date.issued2020-02-01en_AU
dc.date.statistics2024-12-11en_AU
dc.description.abstractDue to growing concern for the environment and human health, searching for high-performance lead-free piezoceramics has been a hot topic of scientific and industrial research. Despite the significant progress achieved toward enhancing piezoelectricity, further efforts should be devoted to the synergistic improvement of piezoelectricity and its thermal stability. This study provides new insight into these topics. A new KNN-based lead-free ceramic material is presented, which features a large piezoelectric coefficient (d33) exceeding 500 pC/N and a high Curie temperature (Tc) of  ∼200°C. The superior piezoelectric response strongly relies on the increased composition-induced structural flexibility due to lattice softening and decreased unit cell distortion. In contrast to piezoelectricity anomalies induced via polymorphic transition, this piezoelectricity enhancement is effective within a broad temperature range rather than a specific small range. In particular, a hierarchical domain architecture composed of nano-sized domains along the submicron domains was detected in this material system, which further contributes to the high piezoelectricity. © C TheAuthor(s) 2019. Published by OxfordUniversity Press on behalf of China Science Publishing&Media Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Media Ltd. (Science Press).en_AU
dc.description.sponsorshipThis work was supported by the Basic Science Center Project of the National Natural Science Foundation of China (51788104 and 51761135118), the Ministry of Science and Technology of China (2015CB654605), the German Research Society (DFG) (HI1867/1–1), and the China Postdoctoral Science Foundation (2017 M620042).en_AU
dc.format.mediumPrint-Electronicen_AU
dc.identifier.citationLiu, Q., Zhang, Y., Gao, J., Zhou, Z., Yang, D., Lee, K.-Y., Studer, A., Hinterstein, M., Wang, K., Zhang, X., Li, L., & Li, J.-F. (2019). Practical high-performance lead-free piezoelectrics: structural flexibility beyond utilizing multiphase coexistence. National Science Review, 7(2), 355-365. doi:10.1093/nsr/nwz167en_AU
dc.identifier.issn2095-5138en_AU
dc.identifier.issn2053-714Xen_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleNational Science Reviewen_AU
dc.identifier.pagination355-365en_AU
dc.identifier.urihttps://doi.org/10.1093/nsr/nwz167en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15886en_AU
dc.identifier.volume7en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherOxford University Pressen_AU
dc.subjectEnvironmenten_AU
dc.subjectHumansen_AU
dc.subjectPiezoelectricityen_AU
dc.subjectCeramicsen_AU
dc.subjectTemperature rangeen_AU
dc.subjectMaterialsen_AU
dc.subjectLeaden_AU
dc.subjectPotassiumen_AU
dc.titlePractical high-performance lead-free piezoelectrics: structural flexibility beyond utilizing multiphase coexistenceen_AU
dc.typeJournal Articleen_AU
dcterms.dateAccepted2019-10-16en_AU
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