Flexible Nanogenerator and Nano-Pressure Sensor Based on Nanofiber Web of PVDF and its Copolymers - Soft Fibrillar Materials: Fabrication and Applications - page 256

Bridge diode for
rectifying signal

(C = 0.47 μ F)
(C = 1.0 μ F)

1.2

1.0

0.8

PVDF nanofiber
based generator

0.6

Capacitor

0.4

0.2

0.0 0

200 400 600 800 1000 1200

Time (sec) (a) (b)

Figure 8.27 (a) Schematic of the capacitor
charging circuit using an electrospun PVDF
nanofiber-based generator. (b) Voltage build-
up curve of the capacitor charged through
a bridge diode while the sinusoidal force is

imparted to the electrospun PVDF nanofiber-
based generator. Imparting force = 50N; area
of electrode = 0.78 cm 2 ; force imparting fre-
quency = 1Hz; thickness of multi-layered
PVDF nanofiber web = 420 μ m.

Based on electrospun piezeoelectric nanofiber webs, some flexible devices were
produced for smart applications. All of these devices proved the feasibility of
application of nanofibers in sensors, actuators, and nanogenerators.

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