Advancements in Multicolor Luminescent Phosphors: Synthesis, Characterization, and Potential Applications

Abstract

ong-lasting luminescence (LPL) phenomenon, exhibited by materials known as long persistent phosphors (LPPs), has garnered significant attention due to its potential applications in various fields. This study focuses on the synthesis and characterization of BaZrSi₃O₉ phosphors doped with rare earth ions (Eu³⁺, Sm³⁺, Dy³⁺, Tb³⁺, and Pr³⁺). The materials were prepared using a high-temperature solid-state reaction method, followed by thorough characterization using X-ray diffraction (XRD) and photoluminescence (PL) spectroscopy. Results show successful incorporation of rare earth ions into the BaZrSi₃O₉ host lattice, leading to distinct emission spectra alongside the host's luminescence. Moreover, afterglow decay curves were analyzed, revealing the presence of multiple trapping centers with varying depths. Thermoluminescence (TL) glow curve experiments provided insights into the trap distribution and their contribution to LPL characteristics. Overall, this research contributes to the understanding of multicolor luminescent phosphors and suggests avenues for the development of new LPPs with diverse applications.