Photoluminescence Properties of Mn4+-activated Perovskite-type Titanates, La2MTiO6:Mn4+ (M = Mg and Zn)

Takeda Y; Kato H; Kobayashi M; Kobayashi H; Kakihana M

Chemistry Letters, Vol.44, No.11, 1541-1543, 2015

Takeda Y, Kato H, Kobayashi M, Kobayashi H, Kakihana M

It has been found that Mn4+-activated La2MTiO6 (M = Mg and Zn) functions as novel Eu-free phosphors for red emission in this work. La2MTiO6:Mn4+ exhibited emission with a peak at 710 nm under excitation by ultraviolet to blue light (300 550 nm). La2MgTiO6:Mn4+ exhibited stronger emission than La2ZnTiO6:Mn4+. The internal quantum yield of La2MgTiO6: Mn4+ was 58.7% under the excitation at 330 nm.