Interface-Induced Near-Infrared Response of Gold-Silica Hybrid Nanoparticles Antennas.

ABSTRACT: We proposed an IR absorber hybrid nanoantenna comprise of two overlapping gold nanoparticles residing over larger a silica nanoparticle. A wet chemical route was employed to prepare the hybrid structure of nanoantenna. High-resolution transmission electron microscope was used to measure the size and morphology of the nanoantenna. The Hybrid nanoantenna was excited by electron beam to investigate the optical response over a large wavelength range using Electron Energy Loss Spectroscopy. The beam of the electron was focused and we measured the electron energy loss spectra at different point of interest, which confirmed the of Low Energy Surface Plasmon Politron resonances in the IR region. The optical response of the nanoantenna was simulated numerically by employing Electric Hertzian dipole

SUBMITTER: Rahman AU 

PROVIDER: S-EPMC7650551 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature