Patent ID: 9011721
Filing Date: 2015-04-21
Classification: C09K

Abstract:
1. Silicate luminescent materials represented by the general formula of (Ba 1-y A y ) 2-x SiO 4 :Eu x , D z @ M n , wherein A is one or two of Sr, Ca, Mg and Zn, D is any one of F and Cl, M is at least one metal nano-particles of Ag, Au, Pt, Pd and Cu; @ is coating, M nano-particles is a core; (Ba 1-y A y ) 2-x SiO 4 :Eu x , D z fluorescent powders are shell; x is in the range of 0.001<x≦0.15, y is in the range of 0≦y≦0.5, z is in the range of 0≦z≦0.5, n is molar ratio of M nano-particles to Si in fluorescent powders, n is in the range of 0<n≦1×10 −2 .