Journal of Inorganic Materials, Volume. 38, Issue 8, 901(2023)

Calcium Doped Self-activated Zinc Germanate Long Afterglow Materials: Multicolor Afterglow and Application in Dynamic Anti-counterfeiting

Qiqi ZENG... Yanzheng WU, Huangyu CHENG, kang SHAO, Tianyu HU and Zaifa PAN* |Show fewer author(s)
Author Affiliations
  • College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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    Figures & Tables(9)
    Structure characterization of ZCGO series samples
    Fitting plot of mass percentage change of Ca element(x) in ZCGO samples
    Diffuse reflection spectra and band gap widths of ZCGO series samples
    Excitation spectra under different monitoring wavelengths and photos in different light sources of ZCGO series samples
    Emission spectra of ZCGO series samples at different excitation wavelengths
    Afterglow decay curves of ZCGO series samples and ZCGO-5 samples under different monitoring wavelengths
    TL curves of ZCGO series samples under different monitoring wavelengths and trap depth histogram of samples
    Photos of flowers stimulated with 254 and 365 nm UV light, and the afterglow after the UV light was turned off
    • Table 1. Parameters for double-exponentially fitting afterglow decay of ZCGO-5 and ZGO samples

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      Table 1. Parameters for double-exponentially fitting afterglow decay of ZCGO-5 and ZGO samples

      Sampleτ1/s A1τ2/s A2τavg/s
      ZCGO-16.820.6181.440.5875.88
      ZCGO-26.520.9190.570.9785.26
      ZCGO-37.880.6787.940.8582.68
      ZCGO-46.780.8588.580.9883.47
      ZCGO-59.170.6588.490.8382.53
      ZGO4.920.6566.130.4063.47
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    Qiqi ZENG, Yanzheng WU, Huangyu CHENG, kang SHAO, Tianyu HU, Zaifa PAN. Calcium Doped Self-activated Zinc Germanate Long Afterglow Materials: Multicolor Afterglow and Application in Dynamic Anti-counterfeiting[J]. Journal of Inorganic Materials, 2023, 38(8): 901

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    Paper Information

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    Received: Dec. 5, 2022

    Accepted: --

    Published Online: Dec. 28, 2023

    The Author Email: PAN Zaifa (panzaifa@zjut.edu.cn)

    DOI:10.15541/jim20220733

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