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RESEARCH PRODUCT

Luminescent YPO4:Eu@PVA dispersions for anti-counterfeiting ink applications

Francesco ArmettaVitalii BoikoDariusz HreniakRosina C. PonterioMaria Luisa Saladino

subject

Luminescent inksAnti-counterfeiting3+Mechanics of Materials4:EuMechanical EngineeringGeneral Materials ScienceYPOCondensed Matter PhysicsPolyvinyl alcohol

description

A method was developed to obtain YPO4:Eu dispersions of PVA as a luminescent inks. YPO4:Eu nanoparticles were prepared by precipitation followed by hydrothermal treatment. The dispersion preparation included systematic studies to prepare a stable colloidal system and to investigate the role of parameters affecting its stability and UV-excited YPO4:Eu emission intensity. The effect of PVA concentration was studied in detail for two different PVAs to determine the optimal parameters for its use as ink with specific luminescent properties. The type of interactions responsible for the dispersion stability was also investigated.

yearjournalcountryeditionlanguage
2023-02-01Materials Letters
https://doi.org/10.1016/j.matlet.2022.133653