Chinese Optics Letters, Volume. 13, Issue 7, 071601(2015)

Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs

Yongzhang Jiang1, Haiping Xia1、*, Shuo Yang1, Jiazhong Zhang1, Dongsheng Jiang1, Cheng Wang1, Zhigang Feng1, Jian Zhang1, Xuemei Gu1, Jianli Zhang1, Haochuan Jiang2, and Baojiu Chen3
Author Affiliations
  • 1Key Laboratory of Photo-Electronic Materials, Ningbo University, Ningbo 315211, China
  • 2Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315211, China
  • 3Department of Physics, Dalian Maritime University, Dalian 116026, China
  • show less
    Figures & Tables(9)
    Powder XRD pattern of Tb3+/Eu3+ co-doped LiYF4 crystal (TE0). The standard pattern of the LiYF4 crystal is shown. Inset, LiYF4 single crystal (TE0).
    Absorption spectra of Samples T0 and TE0, and the un-doped crystals (marked a, b, and c, respectively).
    Emission spectra of Samples T0 and TE0 under 374 nm excitation.
    Excitation spectra of Sample TE0 monitored at 487, 542, and 611 nm wavelengths.
    Emission spectra of Sample TE0 under various excitation wavelengths (353, 362, 374, and 384 nm).
    Emission spectra of various Tb3+/Eu3+ co-doped LiYF4 crystals under 384 nm excitation.
    CIE chromaticity coordinates diagram for Samples TEi (i=0–4) under 384 nm excitation.
    • Table 1. Concentrations of Tb3+ and Eu3+ Ions in LiYF4 Single Crystalsa

      View table
      View in Article

      Table 1. Concentrations of Tb3+ and Eu3+ Ions in LiYF4 Single Crystalsa

      SymbolsT0TE0TE1TE2TE3TE4
      Tb0.850.840.951.101.111.11
      Eu00.600.600.610.750.90
    • Table 2. Luminous Parameters of Samples TEia

      View table
      View in Article

      Table 2. Luminous Parameters of Samples TEia

       Luminous Parameters
      SamplesCIE(x,y)Tc (K)RaQa
      TE00.31300.337764417675
      TE10.30270.348069046860
      TE20.30510.357767136466
      TE30.31200.355563997067
      TE40.32420.338958787775
    Tools

    Get Citation

    Copy Citation Text

    Yongzhang Jiang, Haiping Xia, Shuo Yang, Jiazhong Zhang, Dongsheng Jiang, Cheng Wang, Zhigang Feng, Jian Zhang, Xuemei Gu, Jianli Zhang, Haochuan Jiang, Baojiu Chen. Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs[J]. Chinese Optics Letters, 2015, 13(7): 071601

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Materials

    Received: Jan. 7, 2015

    Accepted: Apr. 29, 2015

    Published Online: Sep. 14, 2018

    The Author Email: Haiping Xia (hpxcm@nbu.edu.cn)

    DOI:10.3788/COL201513.071601

    Topics