Fig. 3: Irreversible accumulated SERS behaviors. | Nature Communications

Fig. 3: Irreversible accumulated SERS behaviors.

From: Irreversible accumulated SERS behavior of the molecule-linked silver and silver-doped titanium dioxide hybrid system

Fig. 3

a NIR irradiation-induced SERS spectra of the 4MBA/Ag/Ag-doped TiO2 hybrid system; b NIR irradiation-induced SERS spectra of the 4MBA/Ag/Ag-doped TiO2 hybrid system after 2 h relaxation without irradiation; c Temporal evolutions of the Raman peak intensities at 88, 148, 364, 1078, and 1587 cm−1. Phase I: the SERS signals under continuous irradiation (100 s); phase II: after 2 h relaxation without irradiation and then under continuous irradiation (80 s). Here, the temporal evolutions of other bands of 4MBA, such as 525, 718, and 842 cm−1, are not displayed due to their relative weak signal and same trends.

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