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http://cio.repositorioinstitucional.mx/jspui/handle/1002/567| Structural and Photoluminescence Study of Er–Yb Codoped Nanocrystalline Zro2–B2o3 Solid Solution | |
| LUIS ARMANDO DIAZ TORRES | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Codoped Er3+ and Yb3+ nanocrystalline ZrO2–B2O3 phosphor obtained by a modified sol–gel method is demonstrated. The addition of up to 2.5 mol% B2O3 to nanocrystalline ZrO2:Yb(2%), Er(1%) keep the tetragonal rare-earth stabilized ZrO2 phase; whereas higher B2O3 content destabilize the tetragonal phase, leading to the tetragonal to monoclinic transition with no tetragonal ZrO2 phase segregation. Visible upconversion of the luminescent active ions, Er3+ and Yb3+, depend strongly on B2O3 content. The PL intensity is strongly quenched for high B2O3 content due to increasing multiphonon relaxation processes related to B O and B O B vibronic modes. | |
| 30-01-2012 | |
| Artículo | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Aparece en las colecciones: | Articulos Arbitrados 2012 |
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| Structural and photoluminescence study of Er–Yb codoped nanocrystalline, Luis Armando.pdf | 985.7 kB | Adobe PDF | Visualizar/Abrir |