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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Nano Energy. 2018 Jan 31;46:101–109. doi: 10.1016/j.nanoen.2018.01.018

Fig. 5.

Fig. 5

(A) Schematic illustration of the energy level diagram; (B) PL emission spectra, (C) time-based photocurrent responses and (D) UV–vis spectra of (a) ZnO NDs, (b) g-C3N4 QDs and (c) ZnO NDs@g-C3N4 QDs.