| Original Articles |
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Nd3+, Yb3+ and Ho3+ Codoped Oxyfluoride Glass Ceramics with High Efficient Green Upconversion Luminescence
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| ZHANG Jun-Jie1;KAWAMOTO Yoji2;DAI Shi-Xun1;ZHANG Li-Yan1;HU Li-Li1 |
| 1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-216, Shanghai 201800
2Department of Chemistry, Faculty of Science, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan |
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| Cite this article: |
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ZHANG Jun-Jie, KAWAMOTO Yoji, DAI Shi-Xun et al 2004 Chin. Phys. Lett. 21 1164-1167 |
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Abstract New oxyfluoride glasses and glass ceramic codoped with Nd3+, Yb3+ and Ho3+ were prepared. The x-ray diffraction analysis revealed that the heat treatments of the oxyfluoride glasses could cause the precipitation of (Nd3+, Yb3+, Ho3+)-doped fluorite-type crystals. Very strong green up-conversion luminescence due to the Ho3+: (5F4, 5S2) → 5I8 transition under 800-nm excitation was observed in these transparent glass ceramics. The intensity of the green up-conversion luminescence in a 1-mol% YbF3-containing glass ceramic was found to be about 120 times stronger than that in the precursor oxyfluoride glass. The reason for the highly efficient Ho3+ up-conversion luminescence in the oxyfluoride glass ceramics is discussed.
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| Keywords:
81.05.Pj
81.05.Je
78.20.-e
91.60.Mk
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Published: 01 June 2004
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| PACS: |
81.05.Pj
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(Glass-based composites, vitroceramics)
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81.05.Je
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(Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides))
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78.20.-e
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(Optical properties of bulk materials and thin films)
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91.60.Mk
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(Optical properties)
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