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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.08519 |
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| _version_ | 1866909534414438400 |
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| author | Khardazi, S. Mezzane, D. Amjoud, M. Novak, N. Choukri, E. Lyubchyk, S. Kutnjak, Z. Rožič, B. Terenchuk, S. Lukyanchuk, I. |
| author_facet | Khardazi, S. Mezzane, D. Amjoud, M. Novak, N. Choukri, E. Lyubchyk, S. Kutnjak, Z. Rožič, B. Terenchuk, S. Lukyanchuk, I. |
| contents | Lead-free perovskite ceramics Ba(1-x)LaxTi0.89Sn0.11O3 with x= 0, 0.015, 0.025, and 0.035 (BLTSnx) were synthesized by solid-state reaction method. The enhanced energy storage properties were studied across the ferroelectric relaxor conversion. The pure perovskite structure of all prepared samples was confirmed by X-ray diffraction (XRD) analysis and the Raman spectroscopy technique. Scanning electron microscopy micrographs show a drastic decrease in the grain size in La-doped ceramics. Furthermore, the doped samples exhibit smeared phase transition and frequency dispersion in dielectric permittivity, typical for relaxors. The P-E hysteresis loops become thin with the increase of the La-doping, demonstrating the ferroelectric-relaxor phase conversion. The enhanced recovered energy density and the energy storage efficiency of 158.8 mJ/cm3 and 82.73 % were observed in the BLTSn2.5 sample at room temperature, respectively. These properties indicate that environmentally friendly BLTSn2.5 is a viable candidate for energy-storage capacitor applications near room temperature. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_08519 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Improved thermal stability of dielectric properties and energy storage properties of lead-free relaxor Ba(1-x)LaxTi0.89Sn0.11O3 ceramics Khardazi, S. Mezzane, D. Amjoud, M. Novak, N. Choukri, E. Lyubchyk, S. Kutnjak, Z. Rožič, B. Terenchuk, S. Lukyanchuk, I. Materials Science Lead-free perovskite ceramics Ba(1-x)LaxTi0.89Sn0.11O3 with x= 0, 0.015, 0.025, and 0.035 (BLTSnx) were synthesized by solid-state reaction method. The enhanced energy storage properties were studied across the ferroelectric relaxor conversion. The pure perovskite structure of all prepared samples was confirmed by X-ray diffraction (XRD) analysis and the Raman spectroscopy technique. Scanning electron microscopy micrographs show a drastic decrease in the grain size in La-doped ceramics. Furthermore, the doped samples exhibit smeared phase transition and frequency dispersion in dielectric permittivity, typical for relaxors. The P-E hysteresis loops become thin with the increase of the La-doping, demonstrating the ferroelectric-relaxor phase conversion. The enhanced recovered energy density and the energy storage efficiency of 158.8 mJ/cm3 and 82.73 % were observed in the BLTSn2.5 sample at room temperature, respectively. These properties indicate that environmentally friendly BLTSn2.5 is a viable candidate for energy-storage capacitor applications near room temperature. |
| title | Improved thermal stability of dielectric properties and energy storage properties of lead-free relaxor Ba(1-x)LaxTi0.89Sn0.11O3 ceramics |
| topic | Materials Science |
| url | https://arxiv.org/abs/2503.08519 |