Isolating and probing the hot spot formed between two silver nanocubes.
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.
Camargo
Pedro H C
PH
Department of Biomedical Engineering, Washington University, Saint Louis, Missouri 63130, USA.
Rycenga
Matthew
M
Au
Leslie
L
Xia
Younan
Y
D049329:Nanostructures / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D013438:Sulfhydryl Compounds / Q000737:chemistry; D020349:Surface Plasmon Resonance
D013438:Sulfhydryl Compounds; D012834:Silver; C540257:4-methylbenzenethiol