Lanthanum aluminate (LaAlO3) nanophosphors doped with erbium were successfully synthesized by a combustion process. The powders were characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and fluorescence spectroscopy. Pure LaAlO3 phase was obtained at 800 degrees C heated for 4 h, with an average crystal size, as determined by TEM, of 60 nm. Infrared emission spectra and decay times of main luminescence transitions were measured at room temperature. A strong emission is reported at 1550 nm from the (I-4(13/2)-> I-4(15/2)) transition, which intensity depends on the Er concentration. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Combustion synthesis and spectroscopic charaterisation of LaAlO3 nanophosphors doped Er3+ ions

Benedetti, A.;Enrichi, F.;
2013

Abstract

Lanthanum aluminate (LaAlO3) nanophosphors doped with erbium were successfully synthesized by a combustion process. The powders were characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and fluorescence spectroscopy. Pure LaAlO3 phase was obtained at 800 degrees C heated for 4 h, with an average crystal size, as determined by TEM, of 60 nm. Infrared emission spectra and decay times of main luminescence transitions were measured at room temperature. A strong emission is reported at 1550 nm from the (I-4(13/2)-> I-4(15/2)) transition, which intensity depends on the Er concentration. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Combustion process
Lanthanum aluminate
Erbium
Nanoparticule
Photoluminescence
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11562/1064517
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