Growth dynamics and light scattering of gold nanoparticles in situ synthesized at high concentration in thin polymer films.

ABSTRACT: Background: Numerous optical applications of nano-objects require a dispersion of the nanoparticles in a dielectric matrix. In order to achieve high particle concentrations, one can, as an alternative, directly grow the particles in a polymer or an inorganic film by, e.g., thermal annealing. Results: Simple laser reflection experiments showed that this growth process induced light scattering at the film/air interface. We report on this phenomenon, considering the growth dynamics of gold nanoparticles in a polymer film. The scattering of light was studied by measuring the bi-directional reflection distribution function. In parallel with the observation of enhanced scattering, imaging ellipsometry in dynamics mode showed that local values of the ellipsometric angles Ψ and Δ wer

SUBMITTER: Guyot C 

PROVIDER: S-EPMC6720325 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature