Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/5519
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rodrigues, Joana | pt |
dc.contributor.author | Peres, Marco | pt |
dc.contributor.author | Fernandes, António | pt |
dc.contributor.author | Graça, Manuel | pt |
dc.contributor.author | Sobolev, Nicolai | pt |
dc.contributor.author | Costa, Florinda | pt |
dc.contributor.author | Monteiro, Teresa | pt |
dc.date.accessioned | 2012-01-27T11:24:52Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0169-4332 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/5519 | - |
dc.description | Partilhar documento na coleção da comunidade Laboratório Associado I3N | pt |
dc.description.abstract | TiO2 fibres grown by the laser floating zone technique show the rutile crystalline phase as identified by X-ray diffraction and Raman spectroscopy. Scanning electron microscopy evidences a uniform surface, free of inclusions and without low-angle grain boundaries and bubbles. At low temperatures, the fibres luminescence is dominated by a richly structured optical centre with two well-defined zero-phonon lines at 1.579 eV and 1.574 eV followed by an intense vibronic sideband with a maximum close to 1.47 eV. Electron paramagnetic resonance revealed that substitutional chromium and iron ions are present as contaminants in the grown fibres, alongside with Ti3+ interstitials and other structural defects. The chemical nature of the defect responsible for the structured near-infrared luminescence is discussed. | pt |
dc.description.sponsorship | PTDC/CTM/66195/2006 | pt |
dc.description.sponsorship | PTDC/CTM/100756/2008 | pt |
dc.description.sponsorship | PTDC/FIS/72843/2006 | pt |
dc.description.sponsorship | SFRH/BD/45774/2008 | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.relation | dx.doi.org/10.1016/j.apsusc.2011.08.109 | pt |
dc.relation.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-80053375927&partnerID=40&md5=9109f46faae823499695288fc91c31fa | |
dc.rights | restrictedAccess | por |
dc.subject | EPR | pt |
dc.subject | LFZ | pt |
dc.subject | PL | pt |
dc.subject | TiO2 | pt |
dc.title | Structural, optical and magnetic resonance properties of TiO2 fibres grown by laser floating zone technique | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.title | Applied Surface Science | pt |
dc.date.embargo | 10000-01-01 | - |
Appears in Collections: | DFis - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2012_Applied-Surface-Science.pdf | versão pdf do editor (em impressão) | 891.13 kB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.