Study on the Persistent Photoluminescence of Trivalent Multiphoton(Ce3+/Ho3+) doped YPO4 Nanophosphors via Polyol Method

The use of persistent photoluminescence materials in low-light imaging, security labeling, and energy-efficient lighting has attracted much attention. This work examines the long-lasting photoluminescence characteristics of YPO4 nanophosphors doped with Ce3+ and Ho3+ trivalent multiphoton ions. These ions' integration brings about distinctive energy shifts that support the glow phenomena. A controlled polyol method was used to create the YPO4 nanophosphors, guaranteeing consistent doping amounts of Ce3+ and Ho3+. The synthesized nanophosphors' crystalline nature was confirmed through X-ray diffraction analysis, and their well-defined nanostructure was revealed by scanning electron microscopy, Fourier-transform infrared spectroscopy (FTIR), UV study, and photoluminescence spectroscopy, which was used to examine their luminescent behavior.