Anti-counterfeiting SERS security labels derived from silver nanoparticles and aryl diazonium salts
Da Li, Julien Brunie, Fan Sun, Philippe Nizard, D. Onidas, Aazdine Lamouri, Vincent Noël, Claire Mangeney, Giorgio Mattana, Yun Luo
Abstract
, -CN, -CCH) with distinguishable Raman fingerprints. The resulting SERS tags were fully characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis absorption and SERS. Then, they were incorporated into ink formulations to be printed on polyethylene naphthalate (PEN) substrates, using handwriting or inkjet printing. Proof-of-concept Raman imaging experiments confirmed the remarkable potential of diazonium salt chemistry to design Ag NPs-based SERS security labels.
Topics & Concepts
NanotechnologyArylRaman scatteringMaterials scienceNanoparticleSilver nanoparticleRaman spectroscopyPhotochemistryChemistryOrganic chemistryAlkylOpticsPhysicsGold and Silver Nanoparticles Synthesis and ApplicationsNanocluster Synthesis and ApplicationsBiosensors and Analytical Detection