Photo-induced electron transfer between a metal nanoparticle and a collection of molecular emitters

Abstract

Hybrid polaritonic nanostructures combining molecular excitons and localized surface plasmons hold strong potential for promising applications in broad areas of nanophotonics. Here, using quantum mechanical calculations, we study the position- and configuration-dependent optical response modulations in a hybrid system composed of a plasmonic nanoparticle and a collection of molecular emitters. Our results underline the coupling between the plasmonic nanoparticle and molecular emitter states, confirmed from the transition density maps. Depending on the interparticle distance (d) and the number of coupled molecular emitters, we show that photo-induced electron transfer emerge. Our theoretical findings bear fundamental interest for the development of novel hybrid polaritonic nanostructures.