Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/6155
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rubinger, C.P.L. | pt |
dc.contributor.author | Costa, L.C. | pt |
dc.contributor.author | Macatrão, M. | pt |
dc.contributor.author | Peres, M. | pt |
dc.contributor.author | Monteiro, T. | pt |
dc.contributor.author | Costa, F.M. | pt |
dc.contributor.author | Franco, N. | pt |
dc.contributor.author | Alves, E. | pt |
dc.contributor.author | Saggioro, B.Z. | pt |
dc.contributor.author | Andreeta, M.R.B. | pt |
dc.contributor.author | Hernandes, A.C. | pt |
dc.date.accessioned | 2012-02-10T10:03:53Z | - |
dc.date.available | 2012-02-10T10:03:53Z | - |
dc.date.issued | 2008-06-25 | - |
dc.identifier.issn | 0003-6951 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/6155 | - |
dc.description | Partilhar documento na coleção da comunidade Laboratório Associado I3N | pt |
dc.description.abstract | We report the microwave dielectric properties and photoluminescence of undoped and europium oxide doped Ta2O5 fibers, grown by laser heated pedestal growth technique. The effects of Eu2O3 doping 1–3 mol % on the structural, optical, and dielectric properties were investigated. At a frequency of 5 GHz, the undoped material exhibits a dielectric permittivity of 21 and for Eu2O3 doped Ta2O5 samples it increases, reaching up to 36 for the highest doping concentration. Nevertheless, the dielectric losses maintain a very low value. For this wide band gap oxide, Eu3+ optical activation was achieved and the emission is observed up to room temperature. Thus, the transparency and high permittivity make this material promising for electronic devices and microwave applications. © 2008 American Institute of Physics. | pt |
dc.description.sponsorship | FCT-PTDC/FIS/66262/06 | pt |
dc.description.sponsorship | FCT-PTDC/CTM/66195/2006 | pt |
dc.language.iso | eng | pt |
dc.publisher | AIP | pt |
dc.relation.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-46049104905&partnerID=40&md5=4b624ff24c350377e94ddcf12899802b | |
dc.rights | openAccess | por |
dc.subject | dielectric losses | pt |
dc.subject | dielectric materials | pt |
dc.subject | doping | pt |
dc.subject | europium compounds | pt |
dc.subject | fibres | pt |
dc.subject | microwave materials | pt |
dc.subject | permittivity | pt |
dc.subject | photoluminescence | pt |
dc.subject | tantalum compounds | pt |
dc.subject | transparency | pt |
dc.title | Microwave dielectric permittivity and photoluminescence of Eu 2O3 doped laser heated pedestal growth Ta 2O5 fibers | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 252904 | pt |
degois.publication.issue | 25 | |
degois.publication.lastPage | 252904 | pt |
degois.publication.title | Applied Physics Letters | pt |
degois.publication.volume | 92 | pt |
dc.relation.publisherversion | link.aip.org/link/doi/10.1063/1.2952284 | * |
Appears in Collections: | DFis - Artigos I3N-FSCOSD - Artigos |
Files in This Item:
File | Description | Size | Format | |
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APL.pdf | versão pdf do editor | 227.83 kB | Adobe PDF | View/Open |
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