Piezoelectric Properties of BiFeO3 Exposed to High Temperatures

Liu L, Yi J, Tang M, Cui Y, Khansur NH, Webber KG, Zhu F, Li X, Wang K, Rojac T, Daniels J, Damjanovic D, Wang S, Wang Y (2024)

Publication Type: Journal article

Publication year: 2024


DOI: 10.1002/adfm.202314807


BiFeO3 is a ferroelectric with a Curie temperature of 830 °C, however, its piezoelectric performance at high temperature remains unclear. The current work reveals a disappearance/recovery of piezoelectricity in BiFeO3 at elevated temperature and upon cooling. In particular, that temperature is strongly frequency-dependent and ranges from 280 to 430 °C between 0.5 and 140 Hz, respectively. Meanwhile, in situ and ex situ X-ray diffraction and piezoresponse microscope analysis demonstrate thermally-resistant domain texture to temperatures as high as 750 °C. This demonstrates that the piezoelectricity of BiFeO3 is strongly influenced by its resistance/conductance variations due to charge carrier motion limiting the operational frequency. The investigation enhances the understanding of BiFeO3 complex piezoelectric behavior at various temperatures, offering insights into its potential applications.

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Liu, L., Yi, J., Tang, M., Cui, Y., Khansur, N.H., Webber, K.G.,... Wang, Y. (2024). Piezoelectric Properties of BiFeO3 Exposed to High Temperatures. Advanced Functional Materials. https://doi.org/10.1002/adfm.202314807


Liu, Lisha, et al. "Piezoelectric Properties of BiFeO3 Exposed to High Temperatures." Advanced Functional Materials (2024).

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