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http://hdl.handle.net/10773/6085
Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Graça, M.P.F. | pt |
dc.contributor.author | Valente, M.A. | pt |
dc.contributor.author | Silva, C.C. | pt |
dc.contributor.author | Peres, M. | pt |
dc.contributor.author | Cruz, A. | pt |
dc.contributor.author | Soares, M.J. | pt |
dc.contributor.author | Neves, A.J. | pt |
dc.contributor.author | Monteiro, T. | pt |
dc.date.accessioned | 2012-02-09T12:04:51Z | - |
dc.date.issued | 2009-04-30 | - |
dc.identifier.issn | 0928-4931 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/6085 | - |
dc.description.abstract | The sol–gel method was used to prepare a lithium niobiosilicate glass doped with europium ions, 91SiO2–4Li2O–4Nb2O5–1Eu2O3 (% mole). The dried gel was heat-treated between 500 °C and 750 °C and glass ceramics were obtained. X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman studies show that crystallization starts at temperatures above 600 °C. The LiNbO3 and EuNbO4 nanocrystals were found in the heat-treated samples as corroborated by the structural, morphological and optical properties. Room temperature photoluminescence (PL) studies allow us the identification of multiple Eu-related optical centres and the strongest red 5D0 → 7F2 intraionic transitions occur in the samples heat-treated at 600 °C where the LiNbO3 crystal phase was detected. | pt |
dc.description.sponsorship | FCT-POCTI/CTM/45236/02 | pt |
dc.description.sponsorship | FCT-SFRH/ BPD/26715/2006 | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.relation.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-64749114025&partnerID=40&md5=6b15b1278ce3ded1344ddd690d32cc73 | |
dc.rights | restrictedAccess | por |
dc.subject | Lithium niobate | pt |
dc.subject | Europium niobate | pt |
dc.subject | Glass–ceramics | pt |
dc.subject | Structural properties | pt |
dc.subject | Morphological properties | pt |
dc.subject | Optical properties | pt |
dc.title | Synthesis and optical properties of a lithium niobiosilicate glass doped with europium | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 894 | pt |
degois.publication.issue | 3 | pt |
degois.publication.issue | 3 | |
degois.publication.lastPage | 898 | pt |
degois.publication.title | Materials Science and Engineering C | pt |
degois.publication.volume | 29 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.identifier.doi | 10.1016/j.msec.2008.07.031 | * |
Appears in Collections: | DFis - Artigos I3N-FSCOSD - Artigos |
Files in This Item:
File | Description | Size | Format | |
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MSEC.pdf | versão pdf do editor | 813.09 kB | Adobe PDF |
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