Extinction Spectra of Bilayer Organometallic Nanoplatelets

Abstract

Spectra of light extinction by metal nanoprisms and nanostars coated with molecular aggregates of organic dyes are calculated and theoretically analyzed. Qualitatively different nature of the spectra of organometallic nanoparticles under study is established when using J-aggregates of various cyanine dyes as their capping layer, as well as silver and gold as the cores. This results from the implementation of various plasmon-exciton coupling modes in the systems under consideration.