Halogen silicate luminescent material and the preparation method and application thereof

Abstract

Disclosed is a halogen silicate luminescent material having a chemical structural formula of (N1-a-bEuaMnb)10Si6O21Cl2:xM, and the preparation method thereof, where M is at least one of Ag, Au, Pt and Pd, N is an alkaline earth metal and specifically at least one of Mg, Ca, Sr and Ba, 0<x≦1×10−2, 0<a≦0.3, and 0≦b≦0.3. The above halogen silicate luminescent material having the core-shell structure can be used to improve internal quantum efficiency and luminous intensity of the luminescent material by making use of the surface plasmon resonance generated by the surface of metal nanoparticles; besides, the above halogen silicate luminescent material has excellent stability, a color rendering index more than 85%, and good luminescent property, and can be applied to LED; moreover, the above preparation method has the advantages of simple operation, no pollution, easy control, low requirements for equipment, and being favorable to industrialized production, and can be widely applied to the field of preparation of the luminescent materials.

Dependencies are inferred from the claim text.