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Cation exchange synthesis and cations doped effects of red-emitting phosphors K2TiF6:Mn4+, M2+ (M = Mg, Ca, Sr, Ba, and Zn)

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Abstract

A series of K2TiF6:Mn4+, M2+ samples were prepared by the cation exchange method. Experimental results indicate that Mn4+ and Ti4+ can be quantitatively exchanged. Doped effects of M2+ (M = Mg, Ca, Sr, Ba, and Zn) on the fluorescent properties of the samples were discussed. The results indicated that the most intensities of the PLE and PL peaks come from a blank sample (K2TiF6:0.0253Mn4+). The sample of K2TiF6:0.0253Mn4+ contains perfect hexagonal phase micro-sticks with sizes about 0.5 × 0.5 × 3.0 μm, which its decay lifetime and the photoluminescence quantum yields are 5.2 ms and 94.04%, respectively. The chromaticity coordinates of K2TiF6:0.0253Mn4+ indicated that this phosphor was a potential candidate as a red-emitting component for blue light excited white LED devices. The method described here is a potential candidate for large-scale synthesis of K2TiF6:Mn4+ micro-sticks.

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Acknowledgements

This research is supported by the Scientific Research Foundation of Guangxi University (Grant No. XDZ140116), the National Natural Science Foundation of China (Grant Nos. 21561003 and 21661006) and Guangxi Scientific Foundation of China (Grant No. 2012GXNSFAA053019) and the Students Experimental Skills and Innovation Ability Training Fund Project of Guangxi University (No. 201610593172).

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Authors and Affiliations

  1. Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, China

    Tianman Wang, Yong Gao, Zhipeng Chen, Qiuying Huang, Baoling Song, Yingheng Huang, Sen Liao & Huaxin Zhang

  2. School of Materials Science and Engineering, Guangxi University, Nanning, 530004, Guangxi, China

    Yingheng Huang

  3. Fangchenggang Entry-Exit Inspection and Quarantine Bureau, Fangchenggang, 538001, Guangxi, China

    Zhipeng Chen

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  1. Tianman Wang
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Correspondence to Sen Liao.

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Wang, T., Gao, Y., Chen, Z. et al. Cation exchange synthesis and cations doped effects of red-emitting phosphors K2TiF6:Mn4+, M2+ (M = Mg, Ca, Sr, Ba, and Zn). J Mater Sci: Mater Electron 28, 11878–11885 (2017). https://doi.org/10.1007/s10854-017-6996-1

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