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Microwave characteristics of sol-gel based Ag-doped (Ba 0.6Sr0.4)TiO3 thin films
dc.creator | Kim, K.T. | |
dc.creator | Kim C. | |
dc.creator | Senior D.E. | |
dc.creator | Kim D. | |
dc.creator | Yoon, Y.K. | |
dc.date.accessioned | 2020-03-26T16:32:49Z | |
dc.date.available | 2020-03-26T16:32:49Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Thin Solid Films; Vol. 565, pp. 172-178 | |
dc.identifier.issn | 00406090 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12585/9034 | |
dc.description.abstract | Dielectric Ba0.6Sr0.4TiO3 (BST) thin films with a different concentration of Ag-dopant of 0.5, 1, 1.5, 2, 3, and 5 mol % have been prepared using an alkoxide-based sol-gel method on a Pt(111)/TiO 2/SiO2/Si substrate and their surface morphology and crystallinity have been examined using scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis, respectively. An on-chip metal-insulator-metal capacitor has been fabricated with the prepared thin film ferroelectric sample. Concentric coplanar electrodes are used for high frequency electrical characterization with a vector network analyzer and a probe station. The SEM images show that increasing Ag doping concentration leads to a decrease in grain size. XRD reveals that the fabricated films show good BST crystallinity for all the concentration while a doping concentration of 5 mol % starts to show an Ag peak, implying a metallic phase. Improved microwave dielectric loss properties of the BST thin films are observed in a low Ag doping level. Especially, BST with an Ag doping concentration of 1 mol % shows the best properties with a dielectric constant of 269.3, a quality factor of 48.1, a tunability at the electric field of 100 kV/cm of 41.2 %, a leakage-current density of 1.045 × 10- 7A/cm2 at an electric field of 100 kV/cm and a figure of merit (defined by tunability (%) divided by tan δ (%)) of 19.59 under a dc bias voltage of 10 V at 1 GHz. © 2014 Elsevier B.V. All rights reserved. | eng |
dc.format.medium | Recurso electrónico | |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905723242&doi=10.1016%2fj.tsf.2014.06.047&partnerID=40&md5=fd01a53151b99e6245ee720b677ca460 | |
dc.title | Microwave characteristics of sol-gel based Ag-doped (Ba 0.6Sr0.4)TiO3 thin films | |
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datacite.rights | http://purl.org/coar/access_right/c_16ec | |
oaire.resourceType | http://purl.org/coar/resource_type/c_6501 | |
oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
dc.type.driver | info:eu-repo/semantics/article | |
dc.type.hasversion | info:eu-repo/semantics/publishedVersion | |
dc.identifier.doi | 10.1016/j.tsf.2014.06.047 | |
dc.subject.keywords | Barium strontium titanate | |
dc.subject.keywords | Dielectric properties | |
dc.subject.keywords | Microwave | |
dc.subject.keywords | Silver doping | |
dc.subject.keywords | Sol-Gel deposition | |
dc.subject.keywords | Tunability | |
dc.subject.keywords | Barium strontium titanate | |
dc.subject.keywords | Dielectric losses | |
dc.subject.keywords | Dielectric properties | |
dc.subject.keywords | Electric fields | |
dc.subject.keywords | Film preparation | |
dc.subject.keywords | Metal insulator boundaries | |
dc.subject.keywords | Microwaves | |
dc.subject.keywords | Scanning electron microscopy | |
dc.subject.keywords | Semiconductor doping | |
dc.subject.keywords | Sol-gel process | |
dc.subject.keywords | Sol-gels | |
dc.subject.keywords | Thin films | |
dc.subject.keywords | Alkoxide-based sol-gel methods | |
dc.subject.keywords | Electrical characterization | |
dc.subject.keywords | Metal insulator metal capacitor (MIM) | |
dc.subject.keywords | Microwave characteristics | |
dc.subject.keywords | Silver doping | |
dc.subject.keywords | Sol-gel deposition | |
dc.subject.keywords | Thin film ferroelectrics | |
dc.subject.keywords | Tunabilities | |
dc.subject.keywords | Silver | |
dc.rights.accessrights | info:eu-repo/semantics/restrictedAccess | |
dc.rights.cc | Atribución-NoComercial 4.0 Internacional | |
dc.identifier.instname | Universidad Tecnológica de Bolívar | |
dc.identifier.reponame | Repositorio UTB | |
dc.description.notes | This work was supported by the Global R&D program of MOTIE/KIAT (N0000686) | |
dc.type.spa | Artículo | |
dc.identifier.orcid | 7409321912 | |
dc.identifier.orcid | 56021218700 | |
dc.identifier.orcid | 36698427600 | |
dc.identifier.orcid | 7409767761 | |
dc.identifier.orcid | 7402126778 |
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