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Title

Site symmetry and host sensitization-dependence of Eu3+ real-time luminescence in tin dioxide nanoparticles

AuthorsFernández, Joaquín ; Balda, Rolindes ; Cascales, Concepción ; García-Revilla, Sara
Issue Date2-Feb-2019
CitationProceedings Optical Components and Materials XVI: 109140T (2019)
AbstractA detailed investigation of the dependence of the real time luminescence of Eu3+-doped tin dioxide nanopowders on rare earth site symmetry and host defects is given. Ultrafast spectroscopy shows that host-rare earth energy transfer occurs at a transfer rate of about 1.5×106 s-1, whereas the intrinsic broad band SnO2 emission has a very short build up time, of the order of 60 ps, and a lifetime of hundreds of picoseconds. These results validate the hypothesis that both host and matrix-excited RE emissions are decoupled due to the different origins of the involved physical mechanisms.
DescriptionTrabajo presentado en SPIE OPTO, celebrado en San Francisco (Estados Unidos), del 2 al 7 de febrero 2019
Publisher version (URL)https://doi.org/10.1117/12.2507261
URIhttp://hdl.handle.net/10261/207904
Identifiersdoi: 10.1117/12.2507261
Appears in Collections:(CFM) Comunicaciones congresos
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