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. 2018 Jul 23;8(7):560. doi: 10.3390/nano8070560

Figure 11.

Figure 11

The Raman spectra of the pure solid γ-666 and α-666, and the SERS spectra of γ-666 and α-666 molecules on the chestnut-like Au nanocrystals’ film after soaking in 10−6 M solutions (excited at 785 nm).