Formation of Nd3+ doped Strontium Barium Niobate nanocrystals by two different methods

Add time:07/24/2019    Source:sciencedirect.com

The study of two different methods to obtain Strontium Barium Niobate nanocrystals has been carried out. Previously, Nd2O3 doped SrO–BaO–Nb2O5–B2O3 glasses were fabricated using the melt quenching process. In the first method, a thermal treatment in an electrical furnace at 620 °C was used to obtain glass ceramic samples. In the second one, the nanocrystals were obtained under continuous Ar laser irradiation in a localized zone in the glass sample. The X-ray diffraction patterns confirmed the formation of SBN nanocrystals in both cases. The optical measurements indicate the incorporation of Nd3+ ions into the nanocrystals which produces an increment of the luminescence intensity. Moreover, a calibration with the temperature has been carried out for the ratio of the Nd3+ emissions. This result could let to control the temperature of the laser irradiated zone.

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