Author Affiliations
Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Science, Kashi University, Kashgar, Xinjiang 844006, Chinashow less
Fig. 1. Emissions spectra and persistent luminescence curves of Zn1+xGa2-0.01-yGexO3x+4∶0.01Cr, yBi (x=1, 2, 3, 4). (a) Emissions spectra; (b) persistent luminescence curves
Fig. 2. Emissions spectra and persistent luminescence curves of Zn3Ga1.99-yGe2O10∶0.01Cr, yBi with different Bi3+ contents. (a) Emissions spectra; (b) persistent luminescence curves
Fig. 3. Effect of reaction conditions on persistent properties of Zn1+xGa2-0.01-yGexO3x+4∶0.01Cr, yBi. (a) Persistent luminescence curves with different thermal reaction time;(b) persistent luminescence curves with different thermal reaction temperatures; (c) persistent luminescence curves with different annealing temperatures
Fig. 4. XRD patterns. (a) XRD patterns of PLNPs with different Bi3+ doping contents; (b) XRD patterns of PLNPs with different annealing temperatures
Fig. 5. Excitation spectrum of Zn3Ga1.97Ge2O10∶0.01Cr, 0.02Bi
Fig. 6. Persistent luminescence spectra of Zn3Ga1.97Ge2O10∶0.01Cr, 0.02Bi. Inset: persistent luminescence pictures before irradiation (a), excited at 254 nm (b), 5 s after stop irradiation (c), and 15 s after stop irradiation (d) obtained by digital camera
Fig. 7. Afterglow image of Zn3Ga1.97Ge2O10∶0.01Cr,0.02Bi
x | y | Composition |
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1 | 0 | Zn2Ga1.99GeO7∶0.01Cr | 2 | 0 | Zn3Ga1.99Ge2O10∶0.01Cr | 3 | 0 | Zn4Ga1.99Ge3O13∶0.01Cr | 4 | 0 | Zn5Ga1.99Ge4O16∶0.01Cr | 2 | 0.01 | Zn3Ga1.98Ge2O10∶0.01Cr,0.01Bi | 2 | 0.02 | Zn3Ga1.97Ge2O10∶0.01Cr,0.02Bi | 2 | 0.03 | Zn3Ga1.96Ge2O10∶0.01Cr,0.03Bi | 2 | 0.04 | Zn3Ga1.95Ge2O10∶0.01Cr,0.04Bi |
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Table 1. Composition of Zn1+xGa2-0.01-yGexO3x+4∶0.01Cr, yBi