Nonlinear response and charge microtransfer between 1D/2D/3D-Ag nanodimers and H2O interactions with external fields

Abstract

The properties of nano-plasmon materials are closely related to problems involving nanoscale systems. Benefitting from their spatial profile, surface plasmons (SPs) can dramatically enhance various external field–matter interactions. Here, we construct three different dimensions of silver atom dimers (1D-Ag6-Ag6, 2D-Ag6-Ag6 and 3D-Ag6-Ag6), bound to a water molecule (H2O) as the research system, using interacting external fields to interact. The results reveal that the nonlinear optics of Ag6-Ag6 are modulated (broken) by H2O, an effect directly related to the spatial dimension of the Ag6-Ag6 system. The charge micro-transfer process we analyzed at the atomic level provides a reasonable explanation for this phenomenon. Surprisingly, the 3D-Ag6-Ag6 system has application prospects as a photo-hydrolysis material, due to the outstanding SPs. We discuss nonlinear phenomena, microprocess and practical applications, with the goal to deliver guidelines for designing future highly adjustable plasmonic devices and technologies.