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Figure 3 | Nanoscale Research Letters

Figure 3

From: A maskless synthesis of TiO2-nanofiber-based hierarchical structures for solid-state dye-sensitized solar cells with improved performance

Figure 3

XRD spectrum, HRTEM and TEM images of nanofibers and their secondary growth. (a) XRD spectrum of nanofibers after hydrothermal treatment to form HNF. The additional red hollow squares denote rutile phase. (b) HRTEM image of as-spun nanofibers showing polycrystallinity. (c) TEM and (d) HRTEM images of the secondary growth on nanofibers. Insets show the SAED patterns for both the samples.

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