Self-erasable inkless imprinting using a dual emitting hybrid organic-inorganic material
Résumé
Smart emissive materials that can react to external stimuli in a reversible way are challenging to develop and have been the subject of considerable interest. Here, we present a printable hybrid material that can withstand numerous writing-erasing cycles. This material is based on a poly(methyl methacrylate) host matrix embedding by copolymerization of a red NIR phosphorescent metal cluster and a blue green 3-oxindole emitter. Irradiation of the homogeneous and stable hybrid films changes the emission color from white to deep red because of the oxygen perturbed energy transfer from the organic dye to the metal cluster. Because of the low PMMA gas permeability, encrypted data lifetime can be tuned from minutes to days, can be self-erased, and be rewritten at will. This material represents a key stepping stone for anticounterfeiting, optoelectronic, data recording, and many other technologies © 2019 Elsevier Ltd
Mots clés
Energy transfer
Esters
Gas permeability
Anti-counterfeiting
Emission color
Emissive materials
Encrypted data
External stimulus
Host matrices
Hybrid organic-inorganic materials
Stepping stone
organic-inorganic materials
Functional Coatings
Luminescence
hybrid material
Stimuli-Responsive Materials
Polymeric Materials
Domaines
Chimie
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Khlifi-2020-Self-erasable Inkless Imprinting Using a Dual Emitting Hybrid Organic-Inorganic Material (1).pdf (1.45 Mo)
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