Strong cooperative upconversion luminescence of ytterbium doped oxyfluoride nanophase vitroceramics |
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Authors: | Xiaobo Chen Zengfu Song |
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Affiliation: | a Applied Optics Beijing Area Major Laboratory, Analysis and Testing Center, Beijing Normal University, Beijing 100875, China b School of Physics, Peking University, Beijing 100871, China |
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Abstract: | The strong 479.1 nm blue cooperative upconversion luminescence of ytterbium Yb3+ ion doped oxyfluoride nanophase vitroceramics (Yb:FOV) is studied in this article. It is found that the 479.1 nm blue cooperative upconversion luminescence strength of Yb(5):FOV is 230 times greater than that of fluoride glass Yb(3):ZBLAN. The large enhancement on cooperative upconversion blue luminescence of this article results from the comprehensive improvement on the aspects of better coupled chance of the Yb3+-Yb3+ cluster, less cross-relaxation, better concentration contribution of Yb3+ activator, non-saturation, and better upconversion luminescence efficiency. |
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Keywords: | 78.55.&minus m 42.70.&minus a 42.62.Fi |
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