Recently, our PCT patent named “White-light LED red luminescent materials and preparation methods thereof” ( PCT patent NO. PCT/CN2010/077624, European patent NO.EP2027418) was granted by Germany , France , UK and Poland.

White-light LED red luminescent materials and preparation methods thereof are provided in the invention. The luminescent materials are represented by the general formula : Ca1-y-m-e-rYyMmXx-pPpZzNn : Eue, Rf, wherein M is at least one selected from Sr, Ba, Sc, Li, Na and K; X is at least one selected from B, Al and Ga, and Al must be contained; Z is at least one selected from Si, V and Nb, and Si must be contained; R is at least one selected from Dy, Er, Tm and Lu, and Dy must be contained; 0.001y0.2, 0.001m0.2, 0.5x, z1.5, 0.001p0.1, 2n4, 0.001e0.2 and 0.001r0.1. The said luminescent materials have excellent chemical stability, high luminous efficiency and good optical decay resistance.

The invention patent has been applied in the company's products, and will have a positive impact on the company to explore domestic and foreign markets and product promotion.