Abstract
Oxyfluoride glasses were developed with composition 60GeO2·10AlF3·25BaF2·(1.95−x) GdF3· 3YbF3·0.05TmF3·xErF3 (x = 0.02, 0.05, 0.08, 0.11, 0.14, 0.17) in mole percent. Intense blue (476 nm), green (524 and 546 nm) and red (658 nm) emissions which identified from the 1 G 4→3 H 6 transition of Tm3+ and the (2 H 11/2, 4 S 3/2) → 4 I 15/2, 4 F 9/2→4 I 15/2 transitions of Er3+, respectively, were simultaneously observed under 980 nm excitation at room temperature. The results show that multicolor luminescence including white light can be adjustably tuned by changing doping concentrations of Er3+ ion or the excitation power. In addition, the energy transfer processes among Tm3+, Er3+ and Yb3+ ions, and up-conversion mechanisms are discussed.
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Funded by the National Natural Science Foundation of China (No. 50772045) and the Society Development Foundation of Yunnan Province (No. 2007E036M)
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Hu, Y., Qiu, J., Zhou, D. et al. Frequency up-conversion luminescence properties and mechanism of Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glasses. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 26, 393–397 (2011). https://doi.org/10.1007/s11595-011-0236-y
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DOI: https://doi.org/10.1007/s11595-011-0236-y