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. 2019 Mar 13;9(3):426. doi: 10.3390/nano9030426

Figure 2.

Figure 2

(A) A series of surface-enhanced Raman scattering (SERS) spectra of crystal violet (CV) molecules collected in 30 batches of self-assembly Au film and (B–D) histograms of SERS intensity of 30 spectra at 1173, 1376, and 1618 cm−1 in part A.