Quantitatively linking morphology and optical response of individual silver nanohedra.

ABSTRACT: The optical response of metal nanoparticles is governed by plasmonic resonances, which are dictated by the particle morphology. A thorough understanding of the link between morphology and optical response requires quantitatively measuring optical and structural properties of the same particle. Here we present such a study, correlating electron tomography and optical micro-spectroscopy. The optical measurements determine the scattering and absorption cross-section spectra in absolute units, and electron tomography determines the 3D morphology. Numerical simulations of the spectra for the individual particle geometry, and the specific optical set-up used, allow for a quantitative comparison including the cross-section magnitude. Silver nanoparticles produced by photochemically driven colloid

SUBMITTER: Wang Y 

PROVIDER: S-EPMC9351607 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature