Formation of nanogap Au–polysilsesquioxane 1D chains for SERS application†
Abstract
Organized assemblies of polysilsesquioxane having specific functional groups were used as templates to synthesise 1D nanochains of Au having 1–2 nm gap silica peapods. The protonated amines in polysilsesquioxanes formed from N-[3-(trimethoxysilyl)propyl]-ethylene diamine bind with AuCl4− leading to formation of monodispersed Au nano-chains by auto reduction.