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. 2019 Feb 7;9:1648. doi: 10.1038/s41598-018-38367-9

Figure 3.

Figure 3

(Left) Experimental solid-state SERS spectra at 514.5 nm of C2, C8, and C6/TCBD deposited on SERS-active substrate (Ag nanoislands on glass). Micro-Raman (514.5 nm) spectra are reported for comparison. (Right) comparison of DFT computed Raman spectra of neutral, positively charged C2 and negatively C8, and C6/TCBD (see text for discussion).