Patent ID: 11932790
Assignee: GRIREM ADVANCED MATERIALS CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 15:
16. A preparation method of the red light and near-infrared light-emitting material according to claim 2, comprising:
weighing raw materials Sc2O3, Ga2O3 and R2O3 according to stoichiometric ratios of molecular formula;
placing the aforementioned raw materials into a crucible after grinding and evenly mixing, and sintering the raw materials in a high-temperature furnace at a temperature of 1200° C. to 1600° C. for 2 hours to 10 hours under a protective atmosphere of air or nitrogen;
cooling in the furnace to room temperature to obtain a sintered sample; and
ball-milling, water-washing and sieving the sample to obtain the red light and near-infrared light-emitting material.