Giant piezoelectric voltage coefficient in grain-oriented modified PbTiO<sub>3</sub> material [electronic resource]
A rapid surge in the research on piezoelectric sensors is occurring with the arrival of the Internet of Things. Single-phase oxide piezoelectric materials with giant piezoelectric voltage coefficient (g, induced voltage under applied stress) and high Curie temperature (T<sub>c</sub>) are...
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| Online Access: |
Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2016.
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| Subjects: |
| Summary: | A rapid surge in the research on piezoelectric sensors is occurring with the arrival of the Internet of Things. Single-phase oxide piezoelectric materials with giant piezoelectric voltage coefficient (g, induced voltage under applied stress) and high Curie temperature (T<sub>c</sub>) are crucial towards providing desired performance for sensing, especially under harsh environmental conditions. Here, we report a grain-oriented (with 95% <001> texture) modified PbTiO<sub>3</sub> ceramic that has a high T<sub>c</sub> (364°C) and an extremely large g<sub>33</sub> (115 × 10<sup>-3</sup> Vm N<sup>-1</sup>) in comparison with other known single-phase oxide materials. Our results reveal that self-polarization due to grain orientation along the spontaneous polarization direction plays an important role in achieving large piezoelectric response in a domain motion-confined material. Finally, the phase field simulations confirm that the large piezoelectric voltage coefficient g<sub>33</sub> originates from maximized piezoelectric strain coefficient d<sub>33</sub> and minimized dielectric permittivity ε<sub>33</sub> in [001]-textured PbTiO<sub>3</sub> ceramics where domain wall motions are absent. Electronic Properties And Materials;Ferroelectrics And Multiferroics. |
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| Item Description: | Published through SciTech Connect. 10/11/2016. "ncomms13089" Nature Communications 7 ISSN 2041-1723 AM. Yongke Yan; Jie E. Zhou; Deepam Maurya; Yu U. Wang; Shashank Priya. |
| Physical Description: | Article No. 13089 : digital, PDF file. |