Annealing-assisted optimization for persistency of afterglow of SrAl₂O₄:Eu²⁺/Dy³⁺ microparticles for forensic detection.

ABSTRACT: In the present work, Eu²⁺/Dy³⁺ ions doped/co-doped into persistent SrAl₂O₄ microparticles have been developed through solid-state synthesis followed by homogenization and particle size reduction in a ball milling device. These particles have shown a broad and long-persistent afterglow around the 528 nm wavelength of electromagnetic radiation through a broad excitation at around 400 nm. The luminescence intensity was optimized through the selection of different annealing temperatures in the range of 1100 °C to 1500 °C, with intervals of 100 °C. Several structural and optical characterization techniques, such as XRD, SEM, FTIR, thermogravimetric analysis, and photoluminescence, were utilized to judge the preparation and ability of these particles i

SUBMITTER: Kumar A 

PROVIDER: S-EPMC10543204 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature