Abstract
In this paper, the near-infrared luminescence Zn3Ga2Ge2O10:Cr3+, Al3+ prepared by citrate sol-gel method is studied. When the Cr3+ doping amount is 0.01% and the Al3+ doping amount is 0.2, the prepared Zn3Ga2Ge2O10: The afterglow properties of Cr3+, Al3+ afterglow nanomaterials are the best. The sample has the least heterogeneous phase, the highest crystallinity, the longest afterglow time, the excitation peak at 267 nm and the emission peak at 745 nm. The light produced belongs to the wavelength range of near-infrared light. After excitation with an ultraviolet lamp, the material can see deep cherry red light in the dark.
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