Silica glass with SnO<sub>2</sub> nanocrystals and Er<sup>3+</sup> ions are prepared by the sol-gel route and treatment above 1000 °C. Transmission electron microscopy evidences a homogeneous dispersion of nanoclusters 4-6 nm in size in the amorphous silica matrix. Photoluminescence spectra excited at 3.5 eV, outside erbium transitions, show an inhomogeneous spectral distribution of light emission from interface defects, in the range 1.9-2.4 eV, resonant with transitions of erbium ions. The analysis of kinetics and temperature dependence of luminescence allows to quantify the efficiency of the energy transfer channel between nanoclusters and erbium ions. © 2006 Elsevier Ltd. All rights reserved.

Brovelli, S., Chiodini, N., Lauria, A., Meinardi, F., Paleari, A. (2006). Kinetics of luminescence of interface defects and resonant Er3+ ions in nanostructured SnO2:SiO2. SOLID STATE COMMUNICATIONS, 138(12), 574-576 [10.1016/j.ssc.2006.04.035].

Kinetics of luminescence of interface defects and resonant Er3+ ions in nanostructured SnO2:SiO2

BROVELLI, SERGIO;CHIODINI, NORBERTO;MEINARDI, FRANCESCO;PALEARI, ALBERTO MARIA FELICE
2006

Abstract

Silica glass with SnO2 nanocrystals and Er3+ ions are prepared by the sol-gel route and treatment above 1000 °C. Transmission electron microscopy evidences a homogeneous dispersion of nanoclusters 4-6 nm in size in the amorphous silica matrix. Photoluminescence spectra excited at 3.5 eV, outside erbium transitions, show an inhomogeneous spectral distribution of light emission from interface defects, in the range 1.9-2.4 eV, resonant with transitions of erbium ions. The analysis of kinetics and temperature dependence of luminescence allows to quantify the efficiency of the energy transfer channel between nanoclusters and erbium ions. © 2006 Elsevier Ltd. All rights reserved.
Articolo in rivista - Articolo scientifico
Nanostructures; Transmission electron microscopy; Optical properties; Luminescence
English
2006
138
12
574
576
none
Brovelli, S., Chiodini, N., Lauria, A., Meinardi, F., Paleari, A. (2006). Kinetics of luminescence of interface defects and resonant Er3+ ions in nanostructured SnO2:SiO2. SOLID STATE COMMUNICATIONS, 138(12), 574-576 [10.1016/j.ssc.2006.04.035].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/14168
Citazioni
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 17
Social impact