Preparation of Zn₃Ga₂Ge₂O₁₀:Cr³⁺, Al³⁺ nanometer phosphors via Sol-Gel method

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.