Abstract
A different route to the synthesis of Eu 3+ phosphors in matrices such as Y 2O 3, YVO 4, La(BO 3) 3 or YNbO 4, and the characterization and luminescent properties of these compounds, were studied. The new route (Pechini method) consists of the formation of a polymeric resin obtained by polyesterification between metal chelate complexes (formed by metallic ions and α-hydroxycarboxylic acids) and a polyfunctional alcohol. Ignition of this resin at low temperature renders the selected composition of Eu 3+ doped oxides or oxosalts. Luminescent and X-ray spectroscopy and thermogravimetric analysis were used to characterize the materials.
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