Cong ZHANG, Yurou LI, Kang SHAO, Jing LIN, Kai WANG, Zaifa PAN. Luminescence Property of the Multicolor Persistent Luminescence Materials for Dynamic Anti-counterfeiting Applications[J]. Journal of Inorganic Materials, 2021, 36(12): 1256
- Journal of Inorganic Materials
- Vol. 36, Issue 12, 1256 (2021)
. XRD patterns of (1-x)ZnGa2O4-xZn2GeO4(x=0.5, 0.6, 0.7, 0.8, 0.9)
. TEM images of (1-x)ZnGa2O4-xZn2GeO4
. Normalized emission spectra of ZGGO : Cr series samples under 273 nm excitation (a), and comparison of luminescence intensity of ZGGO : Cr series samples in blue-green and NIR region (b)
. Normalized excitation spectra of ZGGO : Cr (x=0.7) (a), and emission spectra of ZGGO : Cr (x=0.7) under 254 nm and 365 nm excitation (b)
. Persistent luminescence decay curves of ZGGO : Cr with Xenon lamp pre-charged for 5 min
. Emission spectra of ZGGO : Cr (x=0.7) samples before and after high temperature treatment (a) and persistent luminescence decay curves of ZGGO : Cr after high temperature treatment with Xenon lamp pre-charged for 5 min (b)
. Normalized emission spectra of Zn2GaO4, Zn2GeO4, Zn2GeO4 : Cr3+, and Zn2GaO4 : Cr3+ (λex=254 nm)
. Manufacturing principle of anti-counterfeiting pattern (a), images of the luminescent pattern under 254 nm UV lamp and different decay time (b), and images of the luminescent pattern under 365 nm UV lamp and different decay time (c)
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