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X-ray nanoimaging of Nd3+ optically active ions embedded in Sr0.5Ba0.5Nb2O6 nanocrystals

AuthorsMartínez-Criado, Gema; Alén, Benito ; Sans, Juan Ángel; Lozano-Gorrín, A. D.; Haro-González, P.; Martín, I. R.; Lavín, V.
Issue Date1-Jul-2017
PublisherOptical Society of America
CitationOptical Materials Express 7(7): 2424-2431 (2017)
AbstractThe spatial distribution of Sr0.5Ba0.5Nb2O6 nanocrystals is analyzed in a borate-based glass-ceramic by a synchrotron hard X-ray nanoimaging tool. Based on X-ray excited optical luminescence, we examined 2D projections of the Nd3+ optically active ions in the Sr0.5Ba0.5Nb2O6 nanocrystals, as well as in the glassy phase where they are embedded. Our findings reveal areas of agglomerations and/or clusters of nanocrystals ascribed to the diffusion coefficients of their constituent elements. They are characterized by high Nd3+ concentrations that may act as heterogeneous agents for the nucleation and growth of these nanocrystals.
Publisher version (URL)https://doi.org/10.1364/OME.7.002424
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(IMN-CNM) Artículos
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