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Synthesis, characterization and optical studies on lanthanide-doped CdS quantum dots: new insights on CdS → lanthanide energy transfer mechanisms
dc.contributor.author | Escribano López, Purificación | |
dc.contributor.author | Planelles Aragó, José | |
dc.contributor.author | Cordoncillo, Eloisa | |
dc.contributor.author | Ferreira, Rute A. S. | |
dc.contributor.author | Carlos, Luís D. | |
dc.date.accessioned | 2012-10-22T13:47:25Z | |
dc.date.available | 2012-10-22T13:47:25Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 0959-9428 | |
dc.identifier.uri | http://hdl.handle.net/10234/49615 | |
dc.description.abstract | Eu3+-Doped CdS hexagonal nanocrystals (NCs), with an average size of 4 nm, have been prepared through a simple methodology based on the direct precipitation of CdS NCs using 1-thioglycerol as a capping molecule. Steady-state and time-resolved photoluminescence studies (14–300 K) reveal an effective CdS NCs-to-Eu3+ energy transfer process involving surface localized states and mediated by a thermally activated exchange mechanism. Furthermore, the analysis of the optical data also points out the presence of two distinct Eu3+ local coordination sites with different relaxation kinetics and attributed to lattice-bound and surface-bound centres. The 5D0 lifetime values are longer than those reported previously for sol–gel derived Eu3+-doped CdS NCs. | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | RSC | ca_CA |
dc.relation.isPartOf | Journal of Materials Chemistry Issue 4, 2011 | ca_CA |
dc.rights | © The Royal Society of Chemistry 2011 | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.title | Synthesis, characterization and optical studies on lanthanide-doped CdS quantum dots: new insights on CdS → lanthanide energy transfer mechanisms | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1039/C0JM03188G | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.rsc.org/en/content/articlelanding/2011/jm/c0jm03188g#!divAbstract | ca_CA |
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