Fig. 2From: Optical Properties of Gold Nanoparticle Assemblies on a Glass SurfaceSchema of stages of AuNP dimers formation on a glass surface. 1 Glass surface functionalized by APTES. 2 First immersion into water colloidal solution of AuNP. 3 Second immersion into fresh colloidal solution of AuNP occurred after functionalization of AuNP by NDTBack to article page