A Schematic Diagram of the Direct Detection of Subnano Clusters (IMAGE)

Tokyo Institute of Technology

A Schematic Diagram of the Direct Detection of Subnano Clusters

Caption

Tin oxide SNCs finely prepared by a dendrimer template method are loaded on the thin silica shell layers of plasmonic amplifiers, such that the Raman signals of the SNCs are substantially enhanced to a detectable level. The strength of the electromagnetic fields generated due to the surface plasmon resonance properties of the Au or Ag nanoparticles decays exponentially with distance from the surface. Therefore, a rational interfacial design between the amplifiers and SNCs is the key to acquiring strong Raman signals.

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<i>Science Advances</i>

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