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Transparent ferroelectric crystals with ultrahigh piezoelectricity

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Qiu, Chaorui, Wang, Bo, Zhang, Nan, Zhang, Shujun, Liu, Jinfeng, Walker, David, Wang, Yu, Tian, Hao, Shrout, Thomas R, Xu, Zhuo, Chen, Long-Qing and Li, Fei (2020) Transparent ferroelectric crystals with ultrahigh piezoelectricity. Nature, 577 (7790). pp. 350-354. doi:10.1038/s41586-019-1891-y

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Official URL: https://doi.org/10.1038/s41586-019-1891-y

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Abstract

Transparent piezoelectrics are highly desirable for numerous hybrid ultrasound-optical devices ranging from photoacoustic imaging transducers to transparent actuators for haptic applications . However, it is challenging to achieve high piezoelectricity and perfect transparency simultaneously because most high-performance piezoelectrics are ferroelectrics that contain high-density light-scattering domain walls. Here, through a combination of phase-field simulations and experiments, we demonstrate a relatively simple method of using an alternating-current electric field to engineer the domain structures of originally opaque rhombohedral Pb(Mg Nb )O -PbTiO (PMN-PT) crystals to simultaneously generate near-perfect transparency, an ultrahigh piezoelectric coefficient d (greater than 2,100 picocoulombs per newton), an excellent electromechanical coupling factor k (about 94 per cent) and a large electro-optical coefficient γ (approximately 220 picometres per volt), which is far beyond the performance of the commonly used transparent ferroelectric crystal LiNbO . We find that increasing the domain size leads to a higher d value for the [001]-oriented rhombohedral PMN-PT crystals, challenging the conventional wisdom that decreasing the domain size always results in higher piezoelectricity . This work presents a paradigm for achieving high transparency and piezoelectricity by ferroelectric domain engineering, and we expect the transparent ferroelectric crystals reported here to provide a route to a wide range of hybrid device applications, such as medical imaging, self-energy-harvesting touch screens and invisible robotic devices.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Physics
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Ferroelectric crystals, Piezoelectricity, Crystallography, Ferroelectric crystals
Journal or Publication Title: Nature
Publisher: Nature Publishing
ISSN: 0028-0836
Official Date: 15 January 2020
Dates:
DateEvent
15 January 2020Published
18 November 2019Accepted
Date of first compliant deposit: 10 February 2020
Volume: 577
Number: 7790
Page Range: pp. 350-354
DOI: 10.1038/s41586-019-1891-y
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: ** From PubMed via Jisc Publications Router ** History: received 30-05-2019; accepted 18-11-2019.
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
51922083[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
51831010[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
51761145024[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
61604123[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
B14040111 Projecthttp://viaf.org/viaf/285443039
DMR1744213National Science Foundationhttp://dx.doi.org/10.13039/501100008982
DMR1420620Materials Research Science and Engineering Center, Harvard Universityhttp://dx.doi.org/10.13039/100013111
ACI-1548562National Science Foundationhttp://dx.doi.org/10.13039/501100008982
ACI-1445606National Science Foundationhttp://dx.doi.org/10.13039/501100008982
DMR170006Pittsburgh Foundationhttp://dx.doi.org/10.13039/100000945
N62909-18-12168Office of Naval Research Globalhttp://dx.doi.org/10.13039/100007297
FT140100698Australian Research Councilhttp://dx.doi.org/10.13039/501100000923
UNSPECIFIEDOffice of Naval Researchhttp://dx.doi.org/10.13039/100000006

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