Isolating and Probing the Hot Spot Formed between Two Silver Nanocubes


  • This work was supported in part by a research grant from the NSF (DMR-0804088) and a 2006 Director's Pioneer Award from the NIH (5DP1OD000798). P.H.C.C. was supported in part by the Fulbright Program and the Brazilian Ministry of Education (CAPES).


Out of the frying pan: Hot spots can greatly increase the sensitivity of surface-enhanced Raman scattering, but they remain poorly understood. A new strategy based on plasma etching (see picture) can be used to isolate and exclusively probe the SERS-active molecules adsorbed in the hot-spot region between two silver nanocubes.

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