Synthesis and Luminescence Properties of LnM(v)O4 (M = Nb, Ta):RE3+ (RE = Eu, Tb) Nanophosphors.

ABSTRACT

A group of LnM(v)O4 (M = Nb, Ta)RE3+ (RE = Eu3+, Tb3+) phosphors have been synthesized by pretreatments with a special reactor (supersonic microwave co-assistance (SMC) machine). Powder characteristics were studied by X-ray Diffraction, photoluminescence, fluorescence microscope and scanning electronic microscope. Results showed the samples can exhibit green or red emissions upon the ultra-violet excitations. The influence of SMC method on the physical properties has been investigated in detail.