Abstract

Sm-doped MeMoO₄ (Me=Ba, Sr, Ca, and Mg) nanophosphors were fabricated with a sol-gel method and studied for their microstructure and photoluminescence. The matrices of the doped MgMoO₄ and BaMoO₄ powders show very weak blue emission, but the matrices of the doped MgMoO₄ . and BaMoO₄ powders show relative strong emission. The Sm³⁺ cation in all matrices shows very strong red emission that is more red compared with usually reported orange-red emission. Significantly, the photoluminescence efficiency of Sm³⁺ in SrMoO₄ was largest.

Keywords: Calcination temperature, functional, luminescence, nanocrystalline materials.