Halogenated dibenzoylmethane Eu<sup>3+</sup> complexes as spectroscopic markers: a pioneering photobleaching strategy for counterfeit applications and controlling luminescence efficiency
Alisia V. Tsorieva, Vladislav M. Korshunov, Mikhail T. Metlin, T. V. Vlasova, Victoria E. Gontcharenko, Daria A. Metlina, Victor O. Kompanets, С. В. Чекалин, Ilya V. Taydakov
Abstract
Enhancement of luminescence efficiency from 23% up to 64% by halogenation of ligands in Eu 3+ diketonate complexes was achieved. A novel type of luminescent taggant based on controlled photobleaching for anticounterfeiting application was created.
Topics & Concepts
PhotobleachingCounterfeitLuminescenceDibenzoylmethanePhotochemistryMaterials scienceOptoelectronicsChemistryOpticsFluorescenceOrganic chemistryPhysicsPolitical scienceLawAdvanced Chemical Sensor TechnologiesAnalytical chemistry methods developmentbioluminescence and chemiluminescence research