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Using rare-earth coordination polymers with o-hydroxylbenzoate as a precursor, composing with polyvinyl alcohol as a dispersing medium, a novel red-emitting material of YVO4:xPb2+, yEu3+ (x=0, 1.0, 1.2, 1.5, 1.8, 2.0, and 5.0 mol %; y=5 mol %) was synthesized by an in situ coprecipitation process. Its microstructure and micromorphology have been analyzed by x-ray powder diffraction and scanning electronic...
The functional system studied in this work is a kind of sol-gel derived organic-inorganic hybrid material with excellent luminescent properties in which the two components are covalently linked via Si-O bonds. The organic part is a chromophore group derived from 2-benzoylbenzoic acid that is functionalized with trialkoxysilyl groups; the as-obtained silylated monomer is afterward submitted to complexation...
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