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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=94219205 |
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Table of Contents:
- Synthesis of nanocrystalline and nanostructured oxide materials by controlled precipitation in a polyol medium M. A. Flores-González M. Villanueva-Ibañez J. L. Díaz de León Santiago E. Palacios Beas O. Tillement Física, Astronomía y Matemáticas Y2O3 Nanocrystal Luminescence Green emitting material Nanostructured materials A novel approach in utilizing the polyol method was used for the preparation of nanocrystalline and nanostructuredundoped and Tb3+-doped Y2O3 materials. By this method, particles in colloidal solution and re-dispersible powders withspherical shape and luminescent properties were formed. The materials were characterised by High ResolutionTransmission Electron Microscopy (HRTEM) and Luminescence Spectroscopy (LS). Oxide nanoparticles 5 to 6 nm insize, with homogeneous distribution, good morphology and high crystallinity were obtained, being colloidally stable forweeks. In the case of the re-dispersible powders, nanostructured aggregates 300 to 400 nm in size were observed,containing ultra-small individual nano-oxide bcc crystallites. In addition, the nanocrystalline and nanostructured Tb3+-doped Y2O3 materials showed luminescent properties 2006 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94219205 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.2 Vol.19