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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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WRAP-transparent-ferroelectric-crystals-piezoelectricity-Walker-2019.pdf - Accepted Version - Requires a PDF viewer. Download (2376Kb) | Preview |
Official URL: https://doi.org/10.1038/s41586-019-1891-y
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 | ||||||||||||||||||||||||||||||||||||||||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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| 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: |
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| 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: |
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