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Preparation, spectroscopic properties and enhanced luminescence of Tb3+-doped LuAG phosphors and transparent ceramics by introduction of Sc3+

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Abstract

Tb-doped LuAG(lutetium aluminum garnet) and LuSAG(lutetium scandium-aluminum garnet) precursors were synthesized through a co-precipitation process, using ammonium hydrogen carbonate as precipitator. Single-phase cubic LuAG/Tb and LuSAG/Tb phosphors were obtained after calcination at 1000 and 1200 °C, respectively. These powders could be easily sintered into corresponding transparent LuAG/Tb and LuSAG/Tb ceramics in H2 atmosphere at 1850 °C. The PL excitation and emission spectra were recorded for both phosphors and ceramics. Emission spectra of all materials were found to be typical for Tb3+, resulting from radiative relaxation of D level. Both the Tb-doped LuSAG phosphors and ceramics show higher efficient luminescence than LuAG , especially the transparent Tb-doped LuSAG ceramic shows about 150% higher luminescence intensity than transparent Tb-doped LuAG ceramic.

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Authors and Affiliations

  1. R&D Center of Shanghai Institute of ceramics, Chinese Academy of Sciences, Shanghai, 200050, P.R. China

    Yi-kun Liao, Dan-yu Jiang, Tao Feng & Na Zhang

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  1. Yi-kun Liao
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  2. Dan-yu Jiang
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  3. Tao Feng
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  4. Na Zhang
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Correspondence to Yi-kun Liao.

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Liao, Yk., Jiang, Dy., Feng, T. et al. Preparation, spectroscopic properties and enhanced luminescence of Tb3+-doped LuAG phosphors and transparent ceramics by introduction of Sc3+ . J Mater Sci 42, 5406–5410 (2007). https://doi.org/10.1007/s10853-006-0774-4

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  • DOI: https://doi.org/10.1007/s10853-006-0774-4

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