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. 2017 Dec 19;2(12):9109–9117. doi: 10.1021/acsomega.7b01052

Figure 4.

Figure 4

(A) XPS full-scan spectrum of CuNCs. (B) High-resolution XPS spectrum of the Cu 2p peak of CuNCs. (C) Powder XRD pattern of CuNCs. (D) FT-IR spectrum of yellow-emitting CuNCs.