Figure 2

(A) Fluorescence spectra; (B) XRD patterns; and (C) Raman spectra of ZnO QDs, PVA-ZnO QDs, and PVP-ZnO QDs. (D) Zeta potential study of (a) ZnO QDs, (b) PVA-ZnO QDs, and (c) PVP-ZnO QDs, synthesized using 5mM Zinc acetate and 10 mM concentration of NaOH with 5 mg/ml of polymer capping agent.