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. 2019 Apr 16;9(21):12070–12077. doi: 10.1039/c9ra02120e

Fig. 4. (a) UV-Vis absorption spectrum of CDs, (b) emission spectra of CDs at 360 nm excitation, (c) fluorescence emission spectra of CDs at different excitation wavelengths ranging from 330 nm to 420 nm with increments of 10 nm, (d) photoluminescence (PL) decay curve of the CDs.

Fig. 4