Process for preparing rare earth luminescent materials

摘要

The present invention relates to a process for preparing rare earth trichromatic phosphor, comprising the following steps: (1) providing a matrix material doping with both europium (Eu) and terbium (Tb); (2) grinding and mixing the said matrix material; and (3) making the product obtained in step (2) to react at 800-1000 C for 3-5 hours. According to the present process, only one matrix material and two rare earth reactive ions (Eu^3+, Tb^3+) are desired to synthesize rare earth trichromatic phosphor. That is to say, no reducing reagent is needed and thus no pollution is brought.