Eu3+doped lanthanum oxide nanowhiskers: microwave hydrothermal synthesis, characterization and photoluminescence properties
| Autor: | Bhalchandra Kakade, A. Vadivel Murugan, Annamraju Kasi Viswanath, V. Saaminathan, V. Ravi |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
Photoluminescence Acoustics and Ultrasonics Scanning electron microscope Doping Analytical chemistry Condensed Matter Physics Hydrothermal circulation Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Lanthanum oxide chemistry Excited state Hydrothermal synthesis Emission spectrum |
| Zdroj: | Journal of Physics D: Applied Physics. 39:3974-3977 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/39/18/008 |
| Popis: | We report here a straightforward and rapid microwave?hydrothermal route providing an easy synthesis of Eu3+ doped La2O3 nanowhiskers. The nanostructured Eu3+ doped La2O3 is characterized by x-ray diffraction studies, scanning electron microscopy and photoluminescence (PL). The emission spectrum shows transitions from the excited 5D0 state to 7FJ (J = 0, 1, 2, 3, 4) levels of the Eu3+ ion. The most intense peak around 611?nm is due to the 5D0 ? 7F2 transition, expected from the Judd?Ofelt selection rules. PL spectra measurements demonstrate that the lanthanum oxide nanowhisker shows higher PL intensity. |
| Databáze: | OpenAIRE |
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