Nanocrystals formation on Ho doped strontium barium niobate glass |
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Authors: | P. Haro-Gonzá lez,I.R. Martí n,Alberto Herná ndez Creus |
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Affiliation: | a Dep. de Física Fundamental, Electrónica y Sistemas, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain b Dep. de Química Física, Universidad de La Laguna, E-38207 La Laguna, Tenerife, Spain |
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Abstract: | The study of two different methods to obtain strontium barium niobate nanocrystals immersed in a glass matrix has been carried out. Ho2O3-doped SrO-BaO-Nb2O5-B2O3 glasses were fabricated using the melt quenching method. Glass ceramic samples were obtained from the precursor glass by thermal treatment in a furnace and by laser irradiation. These glass ceramic samples are formed by a glassy phase and a crystalline phase of strontium barium niobate nanocrystals. This structure was confirmed by X-ray diffraction and Atomic Force Microscope images. The incorporation of Ho3+ ions in the strontium barium niobate nanocrystals were corroborated by optical measurements, which produced an increment in the luminescence intensity compared to the precursor glass. |
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Keywords: | Laser irradiation Strontium barium niobate Holmium |
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