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Electrostatic energy storage in antiferroelectric like perovskite

Abstract : Lead-free ferroelectric Na0.5Bi0.5TiO3 (NBT) and NBT-doped Ln (Ln = Er and Ho) in both bulk and thin films forms were processed via solid-state reaction and solution deposition respectively. SEM investigations showed dense samples with fine-grained and smooth microstructure for thin films. A pure perovskite structure was observed by the X-ray diffraction for all specimens. The frequency dependences of the dielectric constant and loss tangent were investigated at room temperature and revealed a decrease in the dielectric losses with the introduction of the lanthanide element. The energy storage density (Wrec) was calculated using the obtained P–E loops. The stored and delivered energies were found depending on the form and composition of the sample.
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Submitted on : Friday, October 22, 2021 - 10:57:35 AM
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M. Zannen, Jamal Belhadi, M. Benyoussef, H. Khemakhem, K. Zaïdat, et al.. Electrostatic energy storage in antiferroelectric like perovskite. Superlattices and Microstructures, Elsevier, 2019, 127, pp.43-48. ⟨10.1016/j.spmi.2018.03.041⟩. ⟨hal-02124144⟩



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