The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Ultrahigh energy density in short-range tilted NBT-based lead-free multilayer ceramic capacitors by nanodomain percolation
Open accessAbstract
Dense pseudocubic 0.62Na0.5Bi0.5TiO3-0.3Sr0.7Bi0.2TiO3-0.08BiMg2/3Nb1/3O3 (NBT-SBT0.08BMN) ceramics with excellent recoverable energy density, Wrec = 7.5 J/cm3 , and conversion efficiency, η = 92%, were synthesized. Large electric breakdown strength was facilitated by electrical homogeneity, high resistivity and large activation energy (1.86 eV). Transmission electron microscopy identified the presence of polar nano-regions (PNRs) in a matrix of short coherence in-phase and antiphase octahedral tilting. Combining polar and tilt order restricted the crystal classes of PNRs to tetragonal, orthorhombic and monoclinic. Using these symmetries, the enhancement of polarization was explained using Landau-Devonshire phenomenology and percolation theory. Octahedral tilting and introduction of larger B-site ions (Mg2+, Nb5+) inhibited long range polar coupling, minimizing strain and maximizing η. Wrec was further improved to 18 J/cm3 (>1000 kV/cm) in multilayers whose properties were stable from 0.01–100 Hz, from 20 °C–160 °C and up to 106 cycles, attractive for pulsed power applications and power electronics.
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Cited by
Electroceramics for High-Energy Density Capacitors: Current Status and Future Perspectives
Wang, G., Lu, Z., Li, Y., Li, L., Ji, H., Feteira, A., Zhou, D., Wang, D., Zhang, S., & Reaney, I. M. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.0c01264 · Cited by 1,380
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Metadata
- Authors
- Ji, H., Wang, D., Bao, W., Lu, Z., Wang, G., Yang, H., Mostaed, A., Li, L., Feteira, A., Sun, S., Xu, F., Li, D., Ma, C.-J., Liu, S.-Y., & Reaney, I. M.
- Venue
- Energy Storage Materials
- Publisher
- Elsevier BV
- Published
- 2021-06
- Volume
- 38
- Pages
- 113-120
- ISSN
- 2405-8289 (ISSN-L)
- 2405-8297
- OpenAlex
- W3121313192
- Cited by
- 281
- References
- 36
- FWCI
- 14.17
- Type
- journal article
- Language
- en
- Open access
- green
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- Ji, H., Wang, D., Bao, W., Lu, Z., Wang, G., Yang, H., Mostaed, A., Li, L., Feteira, A., Sun, S., Xu, F., Li, D., Ma, C.-J., Liu, S.-Y., & Reaney, I. M. (2021). Ultrahigh energy density in short-range tilted NBT-based lead-free multilayer ceramic capacitors by nanodomain percolation. Energy Storage Materials. https://doi.org/10.1016/j.ensm.2021.01.023
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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