Intrinsic optical properties of Ag-doped poly-(vinyl alcohol) nanocomposites: an analysis of the film thickness effect on the plasmonic resonance parameters

Guyot, Corentin; Voué, Michel

doi:10.1007/s00339-020-04055-7

Cited by 2 publications

(1 citation statement)

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“…The angle of incidence was typically set at 60 degrees. SE is now considered as a reference experimental method to determine the refractive index and thickness of polymer films [27] and, in particular, of plasmonic nanocomposite ones (see e.g., [28,29] and the references therein).…”

Section: Thickness Control Of the Composite Filmsmentioning

confidence: 99%

Laser Ablation Synthesis of Silver Nanoparticles for Polymer Nanocomposites

2023

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Silver nanoparticles were synthesized via laser ablation in two different organic solvents (tetrahydrofuran and toluene). The influence of solvent choice on the production and behavior of silver nanoparticles dispersed in a polystyrene matrix was investigated. UV–Vis spectroscopy, ellipsometry and scanning probe microscopy techniques were used for characterization. The silver nanoparticles’ optical properties were modified by the existence of a core-shell structure appearing in toluene-ablated particles. For both solvents and, in particular, for the toluene case, the particles showed good dispersion in the matrix. Additionally, the interphase behavior of the doped polymer films was influenced by the synthesis process, affecting the mechanical and optical (dielectric) properties. The observed results for the nanocomposite are attributed to the formation of a core-shell structure around the particles directly due to the ablation in organic solvents. These findings contribute to the understanding of silver/polystyrene nanocomposites and offer opportunities for developing tailored functional materials by using laser ablation in liquids.

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Section: Thickness Control Of the Composite Filmsmentioning

confidence: 99%