Formation Mechanism and Properties of Foam-Structured ZnO Films Prepared Using Catalyst-Free Carbothermal Method

Figure 3

SEM images of nanostructural ZnO films formed in the L, C, and R zones. (a) and (b) show samples grown in the L zone. The two figures show the same samples but on different scales. Similarly, (c) and (d) show the same samples grown in the C zone, and (e) and (f) depict identical samples prepared in the R zone.

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