Journal of Research Updates in Polymer Science,
Journal Year:
2023,
Volume and Issue:
12, P. 140 - 161
Published: Oct. 4, 2023
Advancements
in
nanotechnology
and
materials
science
have
led
to
the
development
of
a
variety
nanogenerator
with
improved
properties,
making
energy
harvesting
technologies
increasingly
viable
for
various
applications,
such
as
powering
wearable
devices,
remote
sensors,
even
small
electronic
gadgets
future.
The
evolution
hybrid
consisting
polymers
nanoparticles
efficient
harvesters
storage
devices
is
high
demand
nowadays.
Most
investigations
on
organic
ferroelectric
P(VDF-TrFE)
polymer
host
nanocomposite
were
primally
focused
β
phase
due
its
excellent
electrical
properties
application
purposes.
Nanofiller
also
introduced
into
produce
enhanced
properties.
A
brief
description
physical
quantities
related
ferroelectric,
dielectric,
pyroelectric
effects
Thermally
Stimulated
Current
(TSC)
applications
presented.
This
article
explores
different
uses
nanogenerators.
It
explains
basics
effect
structure
nanogenerators
(PNGs),
well
recent
advancements
micro/nanoscale
devices.
Additionally,
it
discusses
how
performance
pyroelectric,
TSC
are
impacted
by
annealing
treatment
polymer.
Polymers for Advanced Technologies,
Journal Year:
2023,
Volume and Issue:
35(1)
Published: Dec. 8, 2023
Abstract
The
different
configurations
of
the
composites
originated
with
machine
or
human
motion,
and
their
mechanical
stability
for
wearable
electronics
is
in
focus.
Here,
study
highlights
that
these
are
critical
devices.
To
achieve
aspects,
electroactive
dielectric
silicone
rubber
(SR)
was
used
as
a
host
matrix.
This
SR
not
only
provides
flexibility,
twisting,
stretchability
such
devices,
but
its
lightweight
makes
them
comfortable
robust
reinforcing
fillers
graphite
nanoplatelets
(GNP)
diatomaceous
earth
(DE)
hybrids
used.
electromechanical
properties
device
were
performed
using
universal
testing
machine.
output
voltage
generated
at
15
phr
filler
0.3
mV
(GNP),
0.15
(DE),
0.22
(hybrid).
Similarly,
biomechanical
studied
motion
joints
thumb
pressing
wrist
bending.
best
it
0.42
0.18
0.25
In
same
way,
aspects
this
work
compressive
modulus,
tensile
strength,
fracture
strain.
For
example,
modulus
1.28
MPa
(control)
increased
to
2.44
3.2
2.75
devices
134%
changed
128%
78%
109%
Overall,
demonstrates
method
develop
high
mechanical,
electromechanical,
usefulness
electronic
Advances in Natural Sciences Nanoscience and Nanotechnology,
Journal Year:
2024,
Volume and Issue:
15(4), P. 045016 - 045016
Published: Oct. 15, 2024
Abstract
A
multiferroic
composite
membrane,
combining
PVDF
piezoelectric
polymer
and
nickel
ferrite
(NFO)
nanofibers,
was
successfully
fabricated
studied
as
an
active
material
layer
in
multifunctional
devices
designed
to
harvest
both
mechanical
magnetic
energy.
Optimization
of
the
manufacturing
process
ensured
even
distribution
NFO
fibers
within
matrix,
enhancing
crystallization
electroactive
β
phase.
The
resulting
PVDF/NFO
films
exhibited
properties,
along
with
a
pronounced
magnetoelectric
(ME)
effect.
In
structure
comprising
Al/PVDF-NFO/PDMS/Al,
device
operated
generator
(PEG)
under
pressing
force
0.5
MPa,
achieving
maximum
output
power
density
14.7
μW
cm
−12
peak-to-peak
voltage
12.2
V.
When
subjected
AC
field
20
Oe
at
50
Hz,
functioned
magneto-mechano-electrical
(MME)
generator,
producing
sinusoidal
waveform
486
mV.
cost-effective
easily
integrable
membrane
presents
promising
opportunities
for
developing
flexible,
self-powered
smart
sensors
human
health
monitoring
systems
implantable
biomedical
devices.
Crystals,
Journal Year:
2023,
Volume and Issue:
13(12), P. 1626 - 1626
Published: Nov. 23, 2023
A
self-sustainable
power
supply
function
with
flexibility,
mechanical
stability,
and
lightweight
quality
is
among
the
required
properties
for
pressure
sensors
other
low-power-consuming
electronics
wearable
devices.
In
this
work,
a
poly(vinylidene
fluoride-trifluoroethylene)/multi-walled
carbon
nanotube
(P(VDF–TrFE)/MWCNT)
composite
was
prepared
to
increase
electrical
conductivity
of
piezoelectric
polymer
and,
thus,
improve
its
generation
capabilities.
It
soaked
by
injection
molding
through
an
anodic
aluminum
oxide
membrane
align
vertically
dipoles
exclude
possibility
dipole
moment
quenching.
The
membrane-type
element
exhibited
excellent
coefficient
d33
42
pC/N
at
frequency
50
Hz
applied
force
intensity
10
N,
while
sensitivity
~375
µV/g,
which
favorable
self-powered
sensor
application.
resulting
utilized
generate
signal
investigate
dependence
electromechanical
behavior
on
surface
roughness,
morphology,
contact
interface
resistance.
