Eu^(3+)-doped ZnMoO_4 with different doping concentrations were synthesized by a hydrothermal method. The effects of Eu^(3+)doping on the phase structure and photoluminescence(PL) properties of ZnMoO_4 were investigat...Eu^(3+)-doped ZnMoO_4 with different doping concentrations were synthesized by a hydrothermal method. The effects of Eu^(3+)doping on the phase structure and photoluminescence(PL) properties of ZnMoO_4 were investigated. The result showed that the introduction of Eu^(3+) could lead to phase transition of ZnMoO_4. With the increase of Eu^(3+)doping amount, β-ZnMoO_4 was transformed to a phase gradually, which led to different photoluminescence performances. The optimized doping concentration of Eu^(3+) was 6 mol% for the highest emission intensity at 615 nm. Its CIE chromaticity coordinates were(0.667, 0.331), which were very close to the values of standard chromaticity(0.67, 0.33) for National Television Standards Committee(NTSC) system.Therefore, Eu^(3+)-doped ZnMoO_4 is considered to be a promising red-emitting phosphor for white LED applications.展开更多
文摘Eu^(3+)-doped ZnMoO_4 with different doping concentrations were synthesized by a hydrothermal method. The effects of Eu^(3+)doping on the phase structure and photoluminescence(PL) properties of ZnMoO_4 were investigated. The result showed that the introduction of Eu^(3+) could lead to phase transition of ZnMoO_4. With the increase of Eu^(3+)doping amount, β-ZnMoO_4 was transformed to a phase gradually, which led to different photoluminescence performances. The optimized doping concentration of Eu^(3+) was 6 mol% for the highest emission intensity at 615 nm. Its CIE chromaticity coordinates were(0.667, 0.331), which were very close to the values of standard chromaticity(0.67, 0.33) for National Television Standards Committee(NTSC) system.Therefore, Eu^(3+)-doped ZnMoO_4 is considered to be a promising red-emitting phosphor for white LED applications.
