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Site symmetry and host sensitization-dependence of Eu3+ real-time luminescence in tin dioxide nanoparticles
Author(s): Joaquín Fernández; Rolindes Balda; Concepción Cascales; Sara García-Revilla
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Paper Abstract

A 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.

Paper Details

Date Published: 27 February 2019
PDF: 12 pages
Proc. SPIE 10914, Optical Components and Materials XVI, 109140T (27 February 2019); doi: 10.1117/12.2507261
Show Author Affiliations
Joaquín Fernández, Donostia International Physics Ctr. (Spain)
Rolindes Balda, Univ. del País Vasco (Spain)
Materials Physics Ctr., CSIC-UPV/EHU (Spain)
Concepción Cascales, Instituto de Ciencia de Materiales de Madrid (Spain)
Sara García-Revilla, Univ. del País Vasco (Spain)

Published in SPIE Proceedings Vol. 10914:
Optical Components and Materials XVI
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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