Multimodal and Multicolor Anti-Counterfeiting Realized in Cacd2ga2ge3o12 with a Single Activator of Mn2+

Insights into blue-light activated red-emitting persistent luminescence from Pr3+-doped phosphors

“…11,22,25,32,33 It is to be noted that the radii difference percentage allowance between the doped and substituted ions must be within 30% according to the report of Davolos. 21,34 Moreover, we can calculate the radii difference percentage using the following equation: To study the morphology and grain size of the samples, typical SEM images of CCGGO:0.0015Pr 3+ were recorded as shown in Fig. 2a.…”

“…20 And the matrix has an adjustable band gap and abundant defect energy levels, which is conducive to the realization of super strong afterglow. 11,21 Furthermore, host materials with an excellent garnet structure have a stable lattice and have attracted considerable attention. 4,[22][23][24] Pr 3+ is a prominent and excellent activator and can exhibit a strong red emission band at 613 nm attributed to the 1 D 2 → 3 H 4 transition of the Pr 3+ ion.…”