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http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1205| Near UV-blue excitable green-emitting nanocrystalline oxide | |
| CARLOS EDUARDO RODRIGUEZ GARCIA NESTOR PEREA LOPEZ GUSTAVO ALONSO HIRATA FLORES | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| http://dx.doi.org/10.1155/2011/790517 | |
| "Green-emitting Eu-activated powders were produced by a two-stage method consisting of pressure-assisted combustion synthesis and postannealing in ammonia. The as-synthesized powders exhibited a red photoluminescence (PL) peak located at nm when excited with nm UV. This emission peak corresponds to the 5D0→7F2 transition in Eu3+. After annealing in ammonia, the PL emission changed to an intense broad-band peak centered at nm, most likely produced by 4f65d1→4f7 electronic transitions in Eu2+. This green-emitting phosphor has excitation band in the near UV-blue region (–450 nm). X-ray diffraction analysis reveals mainly the orthorhombic EuAlO3 and Al2O3 phases. Transmission electron microscopy observations showed that the grains are formed by faceted nanocrystals (~4 nm) of polygonal shape. The excellent excitation and emission properties make these powders very promising to be used as phosphors in UV solid-state diodes coupled to activate white-emitting lamps." | |
| Hindawi Publishing Corporation | |
| 2011 | |
| Artículo | |
| Inglés | |
| Público en general | |
| C. E. Rodríguez-García, N. Perea-López, and G. A. Hirata. (2011). Near UV-Blue Excitable Green-Emitting Nanocrystalline Oxide. Advances in Materials Science and Engineering Volume 2011, Article ID 790517, http://dx.doi.org/10.1155/2011/790517 | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Publicaciones Científicas Nanociencias y Materiales |
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| AdvMatSciEng(2011)790517.pdf | 2.08 MB | Adobe PDF | Visualizar/Abrir |