Spatial Extent of Fluorescence Quenching in Mixed Semiconductor–Metal Nanoparticle Gel Networks

In this work, mixing and co-gelation of Au nanoparticles (NPs) highly luminescent CdSe/CdS core/shell nanorods (NRs) are used as tools to obtain noble metal particle-decorated macroscopic semiconductor gel networks. The hybrid nature the macrostructures facilitates control over optical properties: while holes trapped in CdSe cores, connected NRs support mobility excited electrons throughout porous, hyperbranched Due presence NPs mixed gels, electron trapping gold leads a suppressed radiative recombination, namely, quenches fluorescence certain fragments multicomponent gel. extent quenching can be influenced by quantity domains. properties monitored function NR:NP ratio model system CdSe/CdS:Au. By correlation, it demonstrates that spatial initiated single NP exceeds dimensions one NR, which is (with length 45.8 nm ± 4.1 nm) reach number nine per NP, roughly corresponds 400 total travel distance within network structure.