Research Article

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

Figure 5

Frequency shift (a) and increasing of the attenuation (b) of the SAW sensor measured in real time due to the PVP electrospun fibers deposited for several needle-to-collector distances and an applied voltage of 18 kV.
243037.fig.005a
(a)
243037.fig.005b
(b)