The synthesis of rare-earth doped Lu4Hf3O 12 phosphor nanopowders was achieved through the combustion of metal-organic acetate-citrate amorphous gels. Their crystalline structure and morphology have been characterized by X-ray diffraction and electron microscopy. Under UV and X-ray excitation a bright luminescence of the Eu3+ and Tb3+ dopant ions has been monitored by photo-luminescence as well as by radio-luminescence measurements. We highlight the role of the formation of nanosized precursor gels as an intermediate stage in the synthesis of high-density rare-earth doped Lu4Hf3O12 luminescent nanopowders.
Lauria, A., Chiodini, N., Fasoli, M., Mihokova, E., Moretti, F., Nale, A., et al. (2011). Acetate-citrate gel combustion: a strategy for the synthesis of nanosized lutetium hafnate phosphor powders. JOURNAL OF MATERIALS CHEMISTRY, 21(25), 8975-8978 [10.1039/c1jm11553g].
Acetate-citrate gel combustion: a strategy for the synthesis of nanosized lutetium hafnate phosphor powders
LAURIA, ALESSANDRO;CHIODINI, NORBERTO;FASOLI, MAURO;MORETTI, FEDERICO;NALE, ANGELOCLAUDIO;VEDDA, ANNA GRAZIELLA
2011
Abstract
The synthesis of rare-earth doped Lu4Hf3O 12 phosphor nanopowders was achieved through the combustion of metal-organic acetate-citrate amorphous gels. Their crystalline structure and morphology have been characterized by X-ray diffraction and electron microscopy. Under UV and X-ray excitation a bright luminescence of the Eu3+ and Tb3+ dopant ions has been monitored by photo-luminescence as well as by radio-luminescence measurements. We highlight the role of the formation of nanosized precursor gels as an intermediate stage in the synthesis of high-density rare-earth doped Lu4Hf3O12 luminescent nanopowders.
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