Energy transfer and colorimetric properties of Eu3+/Dy3+ co-doped Gd2(MoO4)3 phosphors

Dy3+ single-doped and Eu3+/Dy3+ co-doped gadolinium molybdate (Gd2(MoO4)3) phosphors were synthesized by a traditional solid-state reaction method. The XRD was used to confirm the crystal structure of the phosphors. The energy transfer between Eu3+ and Dy3+ was observed and studied. The Eu3+ concentration can hardly affect the blue and yellow emission intensities of Dy3+, and the Eu3+ emission intensity increases with the increase of Eu3+ concentration. Co-doping with Eu3+ compensated the red emission component of the Dy3+ doped Gd2(MoO4)3 phosphor. Introducing proper amount of Eu3+ can improve the colorimetric performance of the phosphors.