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Rayleigh-instability-driven dewetting of thin Au and Ag films on indium-tin-oxide surface under nanosecond laser irradiations

2013

Investigations have been carried out on laser-beam-induced nanoparticle (NP) formation in thin (5 nm) Au and Ag films on indium-tin-oxide substrate. After the irradiation the films were observed to break-up into NPs through a dewetting mechanism. This mechanism was investigated as a Rayleigh-instability- driven process. In fact, for each used laser fluence, the resulting Au and Ag NPs' mean size and surface-to-surface mean distance were quantified and correlated between them in the framework of the Rayleigh-instability theory showing an excellent agreement. © The Institution of Engineering and Technology 2013.

quantitative analysiAnalytical chemistrymetallic thin filmsNanoparticleAg filmSubstrate (electronics)IndiumSettore ING-INF/01 - Elettronicaindium tin oxidePhysics::Fluid DynamicsGeneral Materials Sciencesilver nanoparticle articleDewettingRayleigh–Taylor instabilityOxide filmNuclear Experimentdegradationparticle sizeCondensed Matter PhysicsIndium tin oxideNanolithographydewettingnanomaterialIndium-tin-oxide substratechemical reactionMaterials sciencesurface propertyBiomedical EngineeringBioengineeringMean size GoldFluencenanoanalysiCondensed Matter::Materials ScienceOpticsMean distanceIrradiationtheoryLaser theorymetal nanoparticlerayleigh instability theorybusiness.industrylaser beam effectsLaser fluencelasernanofilmTin Silver gold nanoparticlenanofabricationnanoparticlesDe-wettingbusiness
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