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. 2022 Feb 9;10:814766. doi: 10.3389/fchem.2022.814766

FIGURE 1.

FIGURE 1

XRD profiles (A), crystal phase projections (B), Raman spectra (C), and UV-visible absorption spectra (D) of bare ZnONR, In/ZnONR, and GZO/In/ZnONR electrode samples. Inset figure in (D) shows the plots of (αhν)2 vs. hv.