Synthesis and Photoluminescence Characteristics of Sr₃Y_1-x(PO₄)₃:xTb³⁺Nanoparticles

Abstract

In the present work, Tb3+ doped Sr3Y1-x(PO4)3:xTb3+ nanocrystals were synthesized by combustion method using urea as a fuel. Comparing with traditional material processing techniques, combustion method is a relatively simple method. The advantages of low temperature solution base process have been exploited to produce Sr3Y1-x(PO4)3:xTb3+ nanoparticles. The nano crystals obtained through combustion method was characterized by using scanning electron microscopy (SEM), X-ray diffraction (XRD) technique and photoluminescence (PL) spectra. The predominant green colour of the nanocrystals prepared, under an UV source revealed green luminescence that was attributed to transitions 5D4 → 7F5 of Tb3+ located at 545 nm. The particle size of the nanocrystals was found to be in the range of 35nm.