Acetate–citrate gel combustion: a strategy for the synthesis of nanosized lutetium hafnate phosphor powders
2011; Royal Society of Chemistry; Volume: 21; Issue: 25 Linguagem: Inglês
10.1039/c1jm11553g
ISSN1364-5501
AutoresA. Lauria, N. Chiodini, Mauro Fasoli, E. Mihóková, Federico Moretti, Angeloclaudio Nale, M. Nikl, A. Vedda,
Tópico(s)Perovskite Materials and Applications
ResumoThe synthesis of rare-earth doped Lu4Hf3O12 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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