COMPOSITIONS OF GLASS-CERAMIC NANOPARTICULES WITH HIGH UPCONVERSION CONTAMINATED WITH RARE EARTH ION

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The invention relates to the technical field of optics as it specifically relates to oxyfluorinated glass-ceramic nanoparticle compositions with high upconversion contaminated with rare earth ions, which are luminescent nanomaterials obtained by means of the melt-quenching technique. The compositions of the present invention are formed by an easier production process that that described in the prior art, as the production time is shorter (less than 3 hours) and the concentrations of the active ion (lanthanides) are lower (by up to one order of magnitude), which reduces the use of materials in order to obtain emission intensity which is comparable with, or higher than, NaYF4.