In this study. Tb-doped PbTe nanoparticles with variable Tb3+ content were synthesized by a simple hydrothermal technique. The synthesized nanoparticles were characterized by X-ray photoelectron spectroscopy (XPS). scanning electron microscopy (SEM). https://macorners.shop/product-category/circle-pendant-with-birthstone-beads-necklace-premium-box/