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. 2020 May 18;5(21):12339–12345. doi: 10.1021/acsomega.0c01072

Figure 1.

Figure 1

(a) Schematic illustration of R-Fe2O3 and D-Fe2O3 grown on the FTO substrate; (b) XRD patterns of R-Fe2O3 and D-Fe2O3 nanostructured arrays. (c,d) SEM images of R-Fe2O3 and D-Fe2O3 nanostructured arrays, respectively.