11 Noble metal nanostructures with various morphologies and excellent plasmonic characteristics are widely used in SEF and related areas. 6–10 A highly sensitive fluorescence spectroscopy platform provides good development for fluorescence spectroscopy. 1–5 SEF is one of the most important spectroscopic detection technologies and widely used in various fields such as bioassays, medical research, and photoelectric sensing. Introduction When excited by an external electric field, plasmonic nanostructures can manipulate the light field on the nanoscale and thus have received great attention in catalysis, surface enhanced Raman scattering (SERS), and surface enhanced fluorescence (SEF). As a result, tin dendritic nanostructures exhibit outstanding surface enhanced fluorescence and promising application in biomolecule detection and sensor devices. Electrical field simulation results for the tin dendritic nanostructures proved that its nanogaps can enhance the nearby local electromagnetic field. The fabricated tin dendrites have numerous nanogaps between the stratified and adjacent ones, thereby creating many plasmon-active “hotspots” dedicated to enhanced fluorescence. The surface enhanced fluorescence performance of the tin dendrites was tested for the detection of rhodamine 6G as probe molecules, and the result showed that the enhancement factors can reach to 36.5-fold that of an aluminum substrate. In this study, we proposed a method of in situ electrochemical synthesis replacement to fabricate highly branched tin dendritic nanostructures on aluminum substrates.

However, tin dendritic nanostructures are poorly investigated. Dendrite nanostructures with noble metals, such as Au and silver, act as plasmonic substrates with excellent potential in enhanced fluorescence technology.

Tin dendrite chemistry set