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Optimized photoluminescence of red phosphor K2LiAlF6:Mn4+ synthesized by a cation-exchange method

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Abstract

Red phosphor K2LiAlF6:Mn4+ has been synthesized by a cation-exchange method in HF solution. To optimize their optical properties, phosphors were synthesized using different reaction conditions. The K2LiAlF6:0.5%Mn4+ synthesized at 20°C for 4 h shows the highest luminescence intensity. The temperature-dependent emission intensity of the phosphor was investigated, and it was found to exhibit good thermal stability, making it a promising red phosphor candidate for warm WLEDs.

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Authors and Affiliations

  1. Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, KLGHEI of Environment and Energy Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China

    YiWen Zhu, Yong Liu, Lin Huang, TongTong Xuan & Jing Wang

  2. Guzhen Productivity Promotion Center, Zhongshan, 528400, China

    Jing Wang

Authors
  1. YiWen Zhu
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  2. Yong Liu
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  3. Lin Huang
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  4. TongTong Xuan
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  5. Jing Wang
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Correspondence to Jing Wang.

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Zhu, Y., Liu, Y., Huang, L. et al. Optimized photoluminescence of red phosphor K2LiAlF6:Mn4+ synthesized by a cation-exchange method. Sci. China Technol. Sci. 60, 1458–1464 (2017). https://doi.org/10.1007/s11431-017-9033-4

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  • DOI: https://doi.org/10.1007/s11431-017-9033-4

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