Full metadata record
DC Field | Value | Language |
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dc.citation.startPage | 104536 | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 71 | - |
dc.contributor.author | Kursumovic, A | - |
dc.contributor.author | Li, W.-W. | - |
dc.contributor.author | Cho, S | - |
dc.contributor.author | Curran, P. J. | - |
dc.contributor.author | Tjhe, D.H.L. | - |
dc.contributor.author | MacManus-Driscoll, J. L. | - |
dc.date.accessioned | 2023-12-21T17:39:40Z | - |
dc.date.available | 2023-12-21T17:39:40Z | - |
dc.date.created | 2020-02-18 | - |
dc.date.issued | 2020-05 | - |
dc.description.abstract | We report record energy storage density (>80 J cm(-3)) in Pb-free relaxor ferroelectrics based on Mn-doped BiFeO3-BaTiO3 thin films. Rapid interval deposition was used to impose layer-by-layer growth improving crystallinity and lowering unwanted defects concentration. The growth and Mn doping produced an order of magnitude lower leakage, with strongly reduced dielectric loss (from room temperature to >300 degrees C, and 100 Hz to 1 MHz), e.g. by a factor of 5 at 225 degrees C and 25 kHz. At room temperature (RT), the dielectric breakdown strength increased by a factor of 1.5 to >3000 kV cm(-1) while the dielectric constant remained flat, at similar to 1000 from RT to 350 degrees C. The films perform better than competing materials (e.g. PZT and SrTiO3-based) while being Pb-free and while operating up to 350 degrees C, which SrTiO3-based systems do not. Our work gives considerable promise for high energy and power density capacitors for harsh environments. | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.71, pp.104536 | - |
dc.identifier.doi | 10.1016/j.nanoen.2020.104536 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.scopusid | 2-s2.0-85079348680 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/31149 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S2211285520300938 | - |
dc.identifier.wosid | 000530670200036 | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Lead-free relaxor thin films with huge energy density and low loss for high temperature applications | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Energy storage | - |
dc.subject.keywordAuthor | Relaxor ferroelectrics | - |
dc.subject.keywordAuthor | Lead-free | - |
dc.subject.keywordAuthor | Epitaxial perovskite | - |
dc.subject.keywordAuthor | Layer by layer growth | - |
dc.subject.keywordPlus | EPITAXIAL-GROWTH | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | SRTIO3 | - |
dc.subject.keywordPlus | POLARIZATION | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | CERAMICS | - |
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