Research Article

Real-Time Characterization of Electrospun PVP Nanofibers as Sensitive Layer of a Surface Acoustic Wave Device for Gas Detection

Figure 7

SEM images of the electrospun PVP fibers. (a) For 18 kV and 22 cm of needle-to-collector distance. (b) For 18 kV and 11 cm of needle-to-collector distance. (c) Detailed view of (a) image.
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(a)
243037.fig.007b
(b)
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(c)