Polymers,
Год журнала:
2025,
Номер
17(5), С. 585 - 585
Опубликована: Фев. 22, 2025
Flexible
and
wearable
electronics
often
rely
on
piezoelectric
materials,
Poly(vinylidene
fluoride-trifluoroethylene)
(P(VDF-TrFE))
membranes
are
popular
for
this
application.
However,
their
electromechanical
performance
is
limited
due
to
a
relatively
low
coefficient.
To
address
this,
study
investigates
the
incorporation
of
zinc
oxide
(ZnO)
nanorods
(NRs)
into
P(VDF-TrFE)
nanofiber
membrane
matrix.
ZnO
NRs
were
synthesized
doped
well-aligned
nanofibers
using
electrospinning
with
high-speed
rotating
drum.
The
impact
NRs’
mass
fraction
properties
was
evaluated.
Results
show
that
maximum
coefficient
(d33)
−62.4
pC/N,
9.5
times
higher
than
neat
P(VDF-TrFE),
achieved.
These
enhanced
demonstrated
excellent
in
finger-tapping
bending
detection,
making
them
promising
large-scale
flexible
sensor
applications
electronics.
This
approach
offers
simple
effective
route
improve
materials
devices.
The
emerging
integrated
power
supplies
for
self-powered
bioelectronic
devices
over
the
past
few
years
are
summarized.
Additionally,
challenges
and
future
perspectives
in
device
design
manufacturing
also
indicated.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(13), С. 15478 - 15487
Опубликована: Июнь 24, 2024
Self-powered
sensors
are
an
important
application
development
direction
of
nanogenerators.
The
fully
self-powered
systems
that
do
not
rely
on
traditional
energy
such
as
mains
power
or
batteries
is
great
value
to
the
future
design
loT.
Such
system
easy
task
due
detailed
calculation
multiple
units'
consumption
combined
with
smart
minimizing
total
full
design.
By
converting
wind
into
electrical
and
designing
indication
simultaneously
utilizes
this
energy,
we
completed
a
sensing
transduce
strength
high-speed
rail.
sensor
part
modulus
pleated
elastomer
at
same
time
achieves
pressure-LED
indication.
circuit
simplified
by
dropping
control
chips,
decreasing
consumption,
increasing
reliability.
This
crumple
has
faster
activation
speed
than
other
cup
can
sense
force
when
train
passes
protect
canopy
structure.
presents
ideas
for
designs
systems.
Micromachines,
Год журнала:
2024,
Номер
15(8), С. 982 - 982
Опубликована: Июль 30, 2024
The
piezoelectric
effect
refers
to
a
physical
phenomenon
where
materials
generate
an
electric
field
when
subjected
mechanical
stress
or
undergo
deformation
external
field.
This
principle
underlies
the
operation
of
sensors.
Piezoelectric
sensors
have
garnered
significant
attention
due
their
excellent
self-powering
capability,
rapid
response
speed,
and
high
sensitivity.
With
development
sensor
techniques
achieving
precision,
increased
flexibility,
miniaturization,
range
flexible
electronic
products
emerged.
As
core
constituents
sensors,
composite
are
commonly
used
unique
advantages,
including
conformability,
sensitivity,
compatibility.
They
found
applications
in
diverse
domains
such
as
underwater
detection,
skin
sensing,
wearable
targeted
therapy,
ultrasound
diagnostics
for
deep
tissue.
advent
has
revolutionized
design
concepts
application
scenarios
traditional
materials,
playing
crucial
role
next-generation
products.
paper
reviews
research
progress
on
covering
types
typical
fabrication
techniques,
well
across
various
fields.
Finally,
summary
outlook
existing
issues
future
these
provided.
Energy Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 5, 2025
Harvesting
ambient
mechanical
energy
from
the
environment
has
gained
immense
interest
due
to
its
application
in
harvesting
and
active
sensing.
Herein,
an
ABO
3
class
ferroelectric
semiconducting
material
BaTiO
nanoparticles
are
used,
Antimony
(Sb)
is
used
as
a
dopant,
which
can
be
able
enhance
piezoelectric
coefficient
of
higher
level,
leading
increased
energy‐harvesting
performances.
The
fabricated
antimony‐doped
barium
titanate
[Sb‐doped
designated
(BST)]
then
blended
with
polydimethylsiloxane
(PDMS)
prepare
composite
film.
Electrodes
attached
film
on
either
side
fabricate
flexible
nanogenerator
(FCF‐PENG)
device.
FCF‐PENG
device
generates
maximum
electrical
output
peak‐to‐peak
28
V
1.5
μA,
respectively.
also
shows
good
power
density
1.6
mW
m
−2
at
load
resistance
80
MΩ.
At
last,
real‐time
impact
sensor
was
employ
wearable
sensor.
detects
high
low
upon
human
collision
tested
within
laboratory
values
recorded
monitored
indicator
using
ESP32
microcontroller
ThingSpeak
cloud.
above
analysis
experiments
proved
that
paves
way
toward
sports
healthcare
rehabilitation
Internet
Things
(IoT)
devices
soon.
Abstract
Amid
the
global
energy
crisis
and
rising
emphasis
on
sustainability,
efficient
harvesting
has
become
a
research
priority.
Nanogenerators
excel
in
converting
abundant
mechanical
thermal
into
electricity,
offering
promising
path
for
sustainable
solutions.
Among
various
nanogenerator's
materials,
Polyvinylidene
fluoride
(PVDF),
with
its
distinctive
molecular
structure,
exhibits
multifunctional
electrical
properties
including
dielectric,
piezoelectric
pyroelectric
characteristics.
These
combined
excellent
flexibility
make
PVDF
prime
candidate
material
nanogenerators.
In
nanogenerators,
this
is
capable
of
efficiently
collecting
energy.
This
paper
discusses
how
PVDF's
are
manifested
three
types
nanogenerators
compares
performance
these
addition,
strategies
to
improve
output
demonstrated,
physical
chemical
modification
as
well
structural
optimization
such
hybrid
structures
external
circuits.
It
also
introduces
application
natural
human
harvesting,
prospects
medical
technologies
smart
home
systems.
The
aim
promote
use
self‐powered
sensing,
monitoring,
thereby
providing
valuable
insights
designing
more
versatile
