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Effect of heat treatment on structure and up-conversion emission of Er3+-doped GaF3/InF3 based fluoride glasses

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Abstract

GaF3/InF3 based oxyfluoride glasses 20GaF3-15InF3-10SnF2-15ZnF2-17CdF2-3P2O5-(20-x) PbF2−x ErF3 were obtained by melt quenching method. By appropriate heat treatment of the as-prepared glasses above, transparent glass-ceramics were obtained with the formation of tetragonal ZnF2 and cubic ErGa5O12 nanocrystals in the glass matrix confirmed by X-ray diffraction. Differential scanning calorimetry (DSC), transform infrared spectrum and up-conversion luminescence measurements excited at 980nm were performed on as-prepared glasses and glass-ceramics. The different effects of Er3+ content on ΔT 1 (ΔT 1 = T x − T g) and ΔT 2 (ΔT 2 = T p 2 − T p 1) suggest the best content is 0.1 ∼ 1 mol.% for controllable crystallization. The intensity of green luminescence significantly increased in transparent glass-ceramic until the content of Er3+ reaches at 2 mol.% compared to that in as-prepared, but it did not enhance linearly with the increasing time. These results are attributed to the change of environment of Er3+ ions and the decrease distance when Er3+ ions are incorporated into the precipitated nanocrystals.

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Authors and Affiliations

  1. Department of Physics, Tongji University, Shanghai, 200092, China

    Kai Zhou, Jiqian Zhu & Jie Zeng

  2. School of Materials Science and Engineering, Tongji University, Shanghai, 200092, China

    Jiqian Zhu & Junfang Liu

  3. Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, Tongji University, Shanghai, 200092, China

    Junfang Liu

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  1. Kai Zhou
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  2. Jiqian Zhu
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  3. Jie Zeng
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  4. Junfang Liu
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Correspondence to Jiqian Zhu.

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Zhou, K., Zhu, J., Zeng, J. et al. Effect of heat treatment on structure and up-conversion emission of Er3+-doped GaF3/InF3 based fluoride glasses. Rare Metals 30 (Suppl 1), 121–125 (2011). https://doi.org/10.1007/s12598-011-0252-2

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  • DOI: https://doi.org/10.1007/s12598-011-0252-2

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