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.;
2013-01-01
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.
| File | Dimensione | Formato | |
|---|---|---|---|
|
61_2013_Dhahri_CeramicsInternational_LaAlO3Er.pdf
solo utenti autorizzati
Descrizione: Articolo
Licenza:
Accesso ristretto
Dimensione
1.28 MB
Formato
Adobe PDF
|
1.28 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
