Recent progress on lanthanide-based long persistent phosphors: an overview

Abstract

Persistent phosphors are highly explored materials, fitting for their vast applications (including anti-counterfeiting, information or data storage, photocatalysis, sensing, and bioimaging). Lanthanide activation offers effortless tuning of colour in the...

Triple Inverse Sandwich versus End-On Diazenido: Bonding Motifs across a Series of Rhenium–Lanthanide and –Actinide Complexes

“…For example, while the trivalent oxidation state still dominates the chemistry of the lanthanides, an increasing number of complexes isolated in the divalent − or tetravalent − oxidation states have been reported in recent years. Through rational ligand choice and molecular design, lanthanide complexes have recently been developed for a wide range of chemical applications, including molecular magnetism, − luminescence and optics, − and catalysis. − Even when considering only the trivalent state, the lanthanides display a broad spectrum of chemical traits, particularly between the early (lighter) and late (heavier) elements. A commonly discussed concept, known as the “gadolinium break,” has been used as somewhat of a catch-all for describing inconsistencies in chemical and physical properties across the lanthanide series. , Some of these disparities are specific to gadolinium­(III), often posited as a result of its half-filled 4f shell .…”

Solvothermal Treatment of Micron-Sized Commercial SrAl2O4:Eu2+, Dy3+ Phosphors and One-Step Preparation of Nanophosphors for Fingerprint Imaging

“…In addition, more and more persistence has been reported, encouraged by the rapid development of synthesis techniques and precision optical instruments. Significant progress has been made in the exploration of the composition of persistent luminescent materials, persistent luminescent properties, working principles, and modulation methods [26][27][28][29][30]. Micrometer-scale inorganic long afterglow luminescent materials are even more widely used in commercial products because of their excellent afterglow properties.…”

Achieving dynamic quintuple-mode luminescence in Ca3Ti2O7:Pr3+,Er3+ phosphor for anti-counterfeiting applications

“…14–17 Therefore, developing effective, cost-effective, and non-forgeable anti-counterfeiting technology is a crucial goal to protect the rights and interests of consumers and legitimate businesses. 18–23…”