Fig. 5: Time-series SERS of single dye molecules embedded in single hybrid AuNDs. | Nature Communications

Fig. 5: Time-series SERS of single dye molecules embedded in single hybrid AuNDs.

From: Deterministic positioning and alignment of a single-molecule exciton in plasmonic nanodimer for strong coupling

Fig. 5

a, b Time-dependent evolution of SERS signals from (a) a strongly coupled AuND/CB[7]@single MB and (b) a hybrid AuND/CB[7]@single PF. The insets show SEM images of the corresponding measured samples. The scale bar is 50 nm. Each spectrum was collected for 2 s, and the samples were excited at 633 nm. New vibrational lines between the blue arrows indicate the possible formation of a picocavity in the hybrid AuND. The green arrows indicate the nanocavity SERS lines. AuND: Au nanodimer, MB: methylene-blue, PF: proflavine.

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