Annealing effect on the photoluminescence of ge-doped silica films

doi:10.1016/j.physe.2007.09.144

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/16959

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Campo DC	Valor	Idioma
dc.contributor.author	Rolo, Anabela G.	-
dc.contributor.author	Chahboun, A.	-
dc.contributor.author	Conde, O.	-
dc.contributor.author	Vasilevskiy, Mikhail	-
dc.contributor.author	Gomes, M. J. M.	-
dc.date.accessioned	2012-02-09T14:28:10Z	-
dc.date.available	2012-02-09T14:28:10Z	-
dc.date.issued	2008-01	-
dc.date.submitted	2007-05	-
dc.identifier.issn	1386-9477	por
dc.identifier.uri	https://hdl.handle.net/1822/16959	-
dc.description	The authors are grateful to Dr. L. Rebouta for the RBS studies and to Dr. G. Hungerford for his careful reading of the manuscript.	por
dc.description.abstract	SiO2 thin films doped with Ge nanocrystals (NCs) were grown using the RF-sputtering technique. X-ray diffraction studies revealed a diamond structure for Ge NCs. The presence of Ge NCs in the grown films was also confirmed by Raman spectroscopy. Photoluminescence spectroscopy of the samples revealed an emission band at 2.07 eV, which is tentatively attributed to defects located at the Ge-matrix interface. This was found to be quite sensitive to variations of local matrix composition, induced by the annealing process.	por
dc.description.sponsorship	Project POCTI/FIS/56930/2004 financed by the Portuguese Foundation for Science and Technology (FCT)	por
dc.language.iso	eng	por
dc.publisher	Elsevier	por
dc.relation	European Commission through a project called SEMINANO under the Contract NMP4-CT-2004-505285	por
dc.rights	restrictedAccess	por
dc.subject	Germanium	por
dc.subject	Nanocrystals	por
dc.subject	Photoluminescence	por
dc.subject	Defects	por
dc.title	Annealing effect on the photoluminescence of ge-doped silica films	por
dc.type	article	por
dc.peerreviewed	yes	por
dc.relation.publisherversion	http://www.sciencedirect.com/science/article/pii/S1386947707005668	por
sdum.publicationstatus	published	por
oaire.citationStartPage	674	por
oaire.citationEndPage	679	por
oaire.citationIssue	3	por
oaire.citationTitle	Physica E	por
oaire.citationVolume	40	por
dc.identifier.doi	10.1016/j.physe.2007.09.144	por
dc.subject.wos	Science & Technology	por
sdum.journal	Physica E	por
Aparece nas coleções:	CDF - CEP - Artigos/Papers (with refereeing) CDF - FMNC - Artigos/Papers (with refereeing)