Phys.org June 24, 2024
Nanosized PersL materials could blend more easily with solvents and allow printing patterns with fine details. MgGeO3 is one of the frequently employed lattice hosts for PersL phosphors. It can accommodate divalent ions such as Mn2+ to produce deep red PersL. To date, the only reported method of synthesizing nanosized Mn-doped MgGeO3 (MGO:Mn) is the sol–gel method. The synthesis product has a wide particle size distribution and suffers severe aggregation. Researchers in Canada synthesized MGO:Mn nanorods with a uniformly distributed morphology. The nanorods exhibit more intense and longer-lasting PersL. By detailed comparative study between the MGO:Mn nanorods they developed and the MGO:Mn particles prepared by the sol–gel method to identify the origin of the improved PersL property. They demonstrated that the afterglow duration of the MGO:Mn nanorods could be further modulated by adding co-dopants. According to the researchers using a combination of these MGO-based PersL nanorods, dynamic and multimodal anticounterfeiting can be achieved… read more. TECHNICAL ARTICLE
Abstract. Credit: ACS Appl. Nano Mater. 2024, 7, 10, 11541–11552 , May 3, 2024Â