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. 2021 Dec 22;22(1):50. doi: 10.3390/s22010050

Table 3.

Comparative sensing performances of the piezoelectric-based sensor.

Material Structure Application Sensitivity Advantage Ref.
P(VDF-TrFE)/
BaTiO3 1 		Composite
microfiber		 Bending motion sensor for gesture 0.33 V kPa−1 Flexibility,
high accuracy		 [93]
BaTiO3 Fiber/fabric Wearable physiological
sensing		 1.44 V N−1 Flexibility,
High accuracy		 [94]
P(VDF-TrFE) Planar Movement monitoring
and e-skin		 N/A Transparency,
high accuracy,
fast response		 [95]
Pb[Zrx,Ti1−x]O3 Thick block Pulse monitoring 0.018 kPa−1 Ultrathin,
high sensitivity,
long time stability		 [96]
PbI2 Planar Motion sensor/
Environment vibration		 N/A Stretchability,
long time stability,
high sensitivity		 [97]
PVDF 2 Nanofiber Strain sensor N/A Stretchability,
Wide measure range		 [98]
PVDF Thin film planar Human motion 1.5 × 10−5 V mN−1 High sensitivity [99]
PMMA 3
p-GaN		 Vertical fiber
Planar		 Digital imaging 12.88 GPa−1 High resolution
Flexibility		 [100]
MoS2 Single atom layer Energy conversion N/A Flexibility,
Transparence,		 [101]

1 P(VDF-TrFE): poly(vinylidene fluoride-co-trifluoroethylene). 2 PVDF: poly(vinylidene fluoride). 3 PMMA: Poly(methyl methacrylate).