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White light emission from Dy3+-doped LiLuF4 single crystal grown by Bridgman method

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Abstract

Lithium lutetium fluoride (LiLuF4) single crystals doped with different Dy3+ ion concentrations were grown by Bridgman method. The Judd-Ofelt (J-O) strength parameters (Ω 2, Ω 4, Ω 6) of Dy3+ in LiLuF4 crystal are calculated according to the measured absorption spectra and the J-O theory, by which the asymmetry of the Dy3+:LiLuF4 single crystal and the possibility of attaining stimulated emission from 4F9/2 level are analyzed. The capability of the Dy3+:LiLuF4 crystal in generating white light by simultaneous blue and yellow emissions under excitation with ultraviolet light is produced. The effects of excitation wavelength and doping concentration on chromaticity coordinates and photoluminescence intensity are also investigated. Favorable CIE coordinates, x=0.319 3 and y=0.349 3, can be obtained for Dy3+ ion in 2.701% molar doping concentration under excitation of 350 nm.

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Authors and Affiliations

  1. Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo, 315211, China

    Yan-ming Dong  (董艳明), Hai-ping Xia  (夏海平), Li Fu  (符立), Shan-shan Li  (李珊珊), Xue-mei Gu  (谷雪梅), Jian-li Zhang  (章践立), Dong-jie Wang  (王冬杰) & Yue-pin Zhang  (张约品)

  2. Ningbo Institute of Materials Technology and Engineering, the Chinese Academy of Sciences, Ningbo, 315211, China

    Hao-chuan Jiang  (江浩川)

  3. Department of Physics, Dalian Maritime University, Dalian, 116026, China

    Bao-jiu Chen  (陈宝玖)

Authors
  1. Yan-ming Dong  (董艳明)
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  2. Hai-ping Xia  (夏海平)
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  3. Li Fu  (符立)
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  4. Shan-shan Li  (李珊珊)
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  5. Xue-mei Gu  (谷雪梅)
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  6. Jian-li Zhang  (章践立)
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  7. Dong-jie Wang  (王冬杰)
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  8. Yue-pin Zhang  (张约品)
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  9. Hao-chuan Jiang  (江浩川)
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  10. Bao-jiu Chen  (陈宝玖)
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Corresponding author

Correspondence to Hai-ping Xia  (夏海平).

Additional information

This work has been supported by the National Natural Science Foundation of China (Nos.51272109 and 11374044), the Natural Science Foundation of Ningbo city (No.201401A6105016), and K.C. Wong Magna Fund in Ningbo University.

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Dong, Ym., Xia, Hp., Fu, L. et al. White light emission from Dy3+-doped LiLuF4 single crystal grown by Bridgman method. Optoelectron. Lett. 10, 262–265 (2014). https://doi.org/10.1007/s11801-014-4052-4

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  • DOI: https://doi.org/10.1007/s11801-014-4052-4

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