Microstructure and dielectric properties of compositionally graded Ba1-xSrxTiO3 multilayer tunable capacitors
DC Field | Value | Language |
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dc.contributor.author | Choi, Hyun-Ju | - |
dc.contributor.author | Woo, Jong-Un | - |
dc.contributor.author | Hwang, Hyun-Gyu | - |
dc.contributor.author | Kim, Dae-Su | - |
dc.contributor.author | Sanghadasa, Mohan | - |
dc.contributor.author | Nahm, Sahn | - |
dc.date.accessioned | 2021-08-30T02:46:48Z | - |
dc.date.available | 2021-08-30T02:46:48Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2021-04 | - |
dc.identifier.issn | 0955-2219 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/49442 | - |
dc.description.abstract | Li2O/B2O3-added Ba1-xSrxTiO3 (B1-xSxT) ceramics, where 0.2 <= x <= 0.35, were well densified at 920 degrees C with pure perovskite structure. The dielectric constant, tunability, and figure of merit (FOM) of B1-xSxT ceramics increased with x because of the decreasing Curie temperature (T-C). The specimen with x = 0.35, whose T-C was close to room temperature, exhibited a large tunability of 27.4 % and FOM of 110 at 10 kV/cm. A compositionally graded multilayer (CGML), which was sintered at 920 degrees C, was fabricated using B1-xSxT thick films to produce a temperature-stable tunable capacitor, and it evinced a dense microstructure and a continuous interface between the B1-xSxT thick film and the Ag electrode. This CGML capacitor showed a large tunability (51 %) and FOM (150) at 20 kV/cm. It also exhibited stable tunability (17-28 % at 10 kV/cm) at temperatures between 30-90 degrees C. Therefore, the B1-xSxT CGML capacitor is a suitable candidate for temperature-stable tunable capacitors. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Microstructure and dielectric properties of compositionally graded Ba1-xSrxTiO3 multilayer tunable capacitors | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Nahm, Sahn | - |
dc.identifier.doi | 10.1016/j.jeurceramsoc.2020.12.027 | - |
dc.identifier.scopusid | 2-s2.0-85098164357 | - |
dc.identifier.wosid | 000613695700002 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v.41, no.4, pp.2559 - 2567 | - |
dc.relation.isPartOf | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | - |
dc.citation.title | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | - |
dc.citation.volume | 41 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 2559 | - |
dc.citation.endPage | 2567 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.subject.keywordAuthor | Ba1-xSrxTiO3 | - |
dc.subject.keywordAuthor | Low temperature co-fired ceramic | - |
dc.subject.keywordAuthor | Graded multilayer ceramics | - |
dc.subject.keywordAuthor | Tape casting | - |
dc.subject.keywordAuthor | Temperature-stable tunable device | - |
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