Luminescent properties of Zn2SiO4:Mn2+ phosphor under UV, VUV and CR excitation

Zn2-xSiO4:xMn2+ (06A1)) upon 254nm, 147nm and CR excitation, and the maximum emission intensity of Zn2-xSiO4:xMn2+ (0<x=<0.10) was obtained at the Mn2+ concentration of x=0.08, 0.04, 0.02, respectively. The relaxation of excitation energy under the three excitation energies was investigated; the result shows that Mn2+ was excited directly under UV excitation; upon CR excitation, the electron beam mainly excited the host lattice; for VUV excitation, Mn's direct excitation and excitation on the host both existed, and an effective energy transfer process could occur from host to Mn2+ via exchanging interaction in Zn2SiO4:Mn2+