Luminescence properties of Eu3＋ and Ho3＋ in SreTiO4

Eu3＋ and Ho3＋ doped Sr2TiO4 were synthesized by using solid-state reactions. Samples sintered at 1300 ℃ for 6 h could be indexed to Sr2TiO4 with a single phase. Eu3＋ in Sr2TiO4 emitted orange light under the excitation at 365 nm in a broad band which was coupled well with the strongest emission of high pressure mercury vapor lamps. Ho3＋ in Sr2TiO4 emitted yellow light under blue excitation from 450 to 460 nm which agreed well with the emission of blue InGaN-based light-emitting diodes. The present results indicated that Sr2TiO4 was a promis- ing host for high pressure mercury vapor lamps or white light-emitting diodes.