BiFeO3-BaTiO3 ferroelectrics: Decrypting the mechanism of rare earth doping-induced electrical property discrepancy via scaling behavior and multi-level structure

Tai, Deqing; Li, Bing; Xue, Haoyue; Zheng, Ting; Wu, Jiagang

doi:10.1016/j.actamat.2023.119411

Acta Materialia

2024

DOI: 10.1016/j.actamat.2023.119411

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BiFeO3-BaTiO3 ferroelectrics: Decrypting the mechanism of rare earth doping-induced electrical property discrepancy via scaling behavior and multi-level structure

Deqing Tai,

Bing Li,

Haoyue Xue

et al.

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Cited by 19 publications

References 80 publications

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A Z/E isomeric cation designed organic-inorganic cadmium chloride ferroelectric with broadband white-light emission

Qi,

Qin,

Peng

et al. 2024

Sci. China Chem.

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A Z/E isomeric cation designed organic-inorganic cadmium chloride ferroelectric with broadband white-light emission

Qi,

Qin,

Peng

et al. 2024

Sci. China Chem.

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Defect Engineering with Rational Dopants Modulation for High-Temperature Energy Harvesting in Lead-Free Piezoceramics

Xi,

Guo,

Zheng

et al. 2024

Nano-Micro Lett.

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High temperature piezoelectric energy harvester (HT-PEH) is an important solution to replace chemical battery to achieve independent power supply of HT wireless sensors. However, simultaneously excellent performances, including high figure of merit (FOM), insulation resistivity (ρ) and depolarization temperature (Td) are indispensable but hard to achieve in lead-free piezoceramics, especially operating at 250 °C has not been reported before. Herein, well-balanced performances are achieved in BiFeO3–BaTiO3 ceramics via innovative defect engineering with respect to delicate manganese doping. Due to the synergistic effect of enhancing electrostrictive coefficient by polarization configuration optimization, regulating iron ion oxidation state by high valence manganese ion and stabilizing domain orientation by defect dipole, comprehensive excellent electrical performances (Td = 340 °C, ρ250 °C > 107 Ω cm and FOM250 °C = 4905 × 10–15 m2 N−1) are realized at the solid solubility limit of manganese ions. The HT-PEHs assembled using the rationally designed piezoceramic can allow for fast charging of commercial electrolytic capacitor at 250 °C with high energy conversion efficiency (η = 11.43%). These characteristics demonstrate that defect engineering tailored BF-BT can satisfy high-end HT-PEHs requirements, paving a new way in developing self-powered wireless sensors working in HT environments.

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Realizing enhanced energy storage performance of Na0.47Bi0.47Ba0.06TiO3-based relaxors with weak coupling behavior by manipulating phase fraction

Pan,

Dong,

Huang

et al. 2024

Chemical Engineering Journal

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BiFeO3-BaTiO3 ferroelectrics: Decrypting the mechanism of rare earth doping-induced electrical property discrepancy via scaling behavior and multi-level structure

Cited by 19 publications

References 80 publications

A Z/E isomeric cation designed organic-inorganic cadmium chloride ferroelectric with broadband white-light emission

A Z/E isomeric cation designed organic-inorganic cadmium chloride ferroelectric with broadband white-light emission

Defect Engineering with Rational Dopants Modulation for High-Temperature Energy Harvesting in Lead-Free Piezoceramics

Realizing enhanced energy storage performance of Na0.47Bi0.47Ba0.06TiO3-based relaxors with weak coupling behavior by manipulating phase fraction

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