UnissResearch

Logo Universitàegli studi di Sassari
titoli, abstracts, parole chiave >>>
Synthesis, structural investigation and luminescence spectroscopy of nanocrystalline Gd3Ga5O12 doped with lanthanide ions

Daldosso, Matteo and Falcomer, Daniele and Speghini, Adolfo and Bettinelli, Marco and Enzo, Stefano and Lasio, Barbara and Polizzi, Stefano (2008) Synthesis, structural investigation and luminescence spectroscopy of nanocrystalline Gd3Ga5O12 doped with lanthanide ions. Journal of Alloys and Compounds, Vol. 451 (1-2), p. 553-556. ISSN 0925-8388. Article.

Full text not available from this repository.

DOI: 10.1016/j.jallcom.2007.04.194

Abstract

Gadolinium gallium garnet (GGG) nanocrystalline powder doped with lanthanide ions (Eu3+ and Er3+) have been obtained using two different methods (coprecipitation and Pechini). The X-ray diffraction results show that single phase cubic GGG nanopowders have been obtained for both preparation methods. The samples prepared by the two procedures show different morphologies, as revealed by scanning electron microscopy images. The Er3+-doped nanopowders obtained with the coprecipitation method show strong luminescence upon 488.0 nm excitation. The emission spectrum is similar to the one of the single crystal and of nanopowders of the same composition prepared by a combustion synthesis. The Er3+-doped GGG nanopowders obtained by the coprecipitation method show efficient upconversion in the green region (around 550 nm) upon excitation in the near IR at a wavelength of 800 nm.

Item Type:Article
ID Code:2009
Status:Published
Refereed:Yes
Uncontrolled Keywords:Chemical synthesis, nanostructured materials, rare earth alloys and compounds, x-ray diffraction, optical materials
Subjects:Area 03 - Scienze chimiche > CHIM/02 Chimica fisica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:Elsevier
ISSN:0925-8388
Copyright Holders:© 2007 Elsevier B.V.
Additional Information:Paper presented at the 6. International conference on f-elements (ICFE-6), Wroclaw, Poland, 4-9 September 2006.
Deposited On:18 Aug 2009 10:06

I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore

Repository Staff Only: item control page