Luminescent property of a novel yellow emitting phosphor Sr2ZnMoO6:Dy3+

A yellow emitting phosphor Sr2ZnMoO6:Dy3+ is synthesized by a solid state reaction at 1250 °C for 4 h, and its luminescent properties are investigated. Its phase formation is carried out with X-ray powder diffraction analysis, and there has no crystalline phases other than Sr2ZnMoO6. Sr2ZnMoO6:Dy3+ can produce yellow emission under the 272 and 387 nm radiation excitation, and the prominent luminescence in yellow (575 nm) due to the 4F9/2–6H13/2 transition of Dy3+. For the 575 nm emission, the excitation spectrum present one broad band and some narrow bands, and the peaks locate at 272, 324, 350, 365, 387, 426 and 474 nm, respectively. Its emission intensity is influenced by the Dy3+ doping concentration, and the concentration quenching effect is also observed. The CIE chromaticity coordinates values of Sr2ZnMoO6:Dy3+ show the almost same results with the different Dy3+ concentration, and locate in the yellow region.