Engineering of coherent plasmon resonances from silver soret colloids, graphene oxide and Nd2O3 nanohybrid architectures studied in mobile phone-based surface plasmon-coupled emission platform

Nanoparticle assemblies obtained using adiabatic cooling methodology is termed soret colloids (SCs). They are utilized in different sensing applications on account of their unique material properties. Here, silver (Ag) SCs were synthesized incorporating low-dimensional graphene oxide (GO) in the nanoassembly to engineer hybrid architectures. The plasmonic performance of synthesized AgGOSC hybrid sorets were studied on Ag nanofilm in spacer nanoassembly with and without additional GO monolayer and Nd2O3 nanorods. The highly p-polarized and directional >900-fold surface plasmon-coupled emission (SPCE) enhancement was obtained with excellent correlation with mobile phone-based luminosity analysis, amenable for resource-limited settings.

Automated summary

In this study, silver nanoparticle assemblies incorporating graphene oxide were synthesized using adiabatic cooling methodology. The plasmonic properties of the hybrid structures were investigated, showing over 900-fold surface plasmon-coupled emission enhancement. This research has the potential for applications in sensing and luminosity analysis in resource-limited settings.