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. 2021 Apr 15;6(16):10515–10526. doi: 10.1021/acsomega.0c04080

Figure 2.

Figure 2

(a) UV–vis and (b) photoluminescence (PL) spectra of Py-03, Py-MeO, Py-Me, and Py-Br in DCM; (c) PL spectra of the thin films of Py-03, Py-MeO, Py-Me, and Py-Br; and (d) PL spectra of Py-03, Py-MeO, Py-Me, and Py-Br measured at low temperatures (77 K).