Accounts of Materials Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 9, 2024
ConspectusPiezoionic
skin
sensors
are
one
kind
of
artificial
electrical
that
can
output
sensing
signals
in
response
to
external
strain
or
stress
stimulus
with
merits
flexibility,
lightness,
scalability,
and
high
sensitivity.
They
have
been
emerging
as
an
important
platform
intelligence,
such
smart
healthcare,
bionic
robotics,
microelectromechanical
systems.
Piezoionic
typically
composed
electrolyte
laminated
symmetric
electrodes
based
on
ion
migration
redistribution
under
a
gradient
field.
However,
existing
challenges
significantly
impede
the
performance
piezoionic
sensors,
including
low
electromechanical
coupling
efficiency
electrode
materials,
instability
strain-induced
interface
separation
sensor
interfaces.
In
recent
years,
our
group
collaborators
made
attempts
addressing
as-mentioned
critical
order
achieve
flexible
satisfying
for
wearable
applications.
First,
we
developed
various
materials
highly
efficient
storage
transfer,
graphdiyne,
quinone
composites,
graphitic
carbon
nitride.
These
present
superior
mechanical
properties
enhanced
efficiency.
Second,
improve
stability
electrolytes,
especially
air
environment,
ionogel
electrolytes
instead
conventional
hydrogel
electrolytes.
Ionogels
contain
stable
ionic
liquids,
which
effectively
devices
preserved
even
after
several
months.
Third,
regard
separation,
engineered
material
interfaces
elaborate
structures.
The
as-designed
tree-root-inspired
show
conditions,
display
negligible
deterioration
thousands
bending
cycles
ambient
environment.
Finally,
obtained
studied
their
practical
applications,
electronics,
health
monitoring,
detections.
For
example,
realized
accurate
detection
blood
pressure
out-of-plane
mechanism.
This
innovative
technique
completely
avoids
cuff
issue
commercial
sphygmomanometers
have.
Moreover,
multifinger-touch
arrays
effective
braille
recognition,
potential
eliminate
communication
barriers
sight-impaired
people.
Human
voices
be
easily
differentiated
by
detecting
vocal-cord
vibrations
captured
obviously
different
patterns.
is
promising
extended
applied
use
virtual
reality
technology.
Lastly,
perspective
highlighted
set
clear
direction
future
research,
low-cost
synthesis,
mass
production
healthcare
products.
C – Journal of Carbon Research,
Год журнала:
2025,
Номер
11(1), С. 3 - 3
Опубликована: Янв. 1, 2025
Graphene-based
piezoelectric
nanogenerators
(PENGs)
have
emerged
as
a
promising
technology
for
sustainable
energy
harvesting,
offering
significant
potential
in
powering
next-generation
electronic
devices.
This
review
explores
the
integration
of
graphene,
highly
conductive
and
mechanically
robust
two-dimensional
(2D)
material,
with
PENG
to
enhance
their
conversion
efficiency.
Graphene’s
unique
properties,
including
its
exceptional
electron
mobility,
high
mechanical
strength,
flexibility,
allow
development
superior
performance
compared
conventional
PENGs.
When
combined
materials,
polymers,
graphene
serves
both
an
active
layer
charge
transport
medium,
boosting
response
output
power.
The
graphene-based
PENGs
can
harvest
from
various
sources,
vibrations,
human
motion,
ambient
environmental
forces,
making
them
ideal
applications
wearable
electronics,
low-power
paper
provides
overview
fabrication
techniques,
material
mechanisms
PENGs,
into
real-world
applications.
findings
demonstrate
that
incorporation
enhances
PENG,
paving
way
future
innovations
energy-harvesting
technologies.
Abstract
Bio‐inspired
by
tactile
function
of
human
skin,
piezoionic
skin
sensors
recognize
strain
and
stress
through
converting
mechanical
stimulus
into
electrical
signals
based
on
ion
transfer.
However,
transfer
inside
is
significantly
restricted
the
lack
hierarchical
structure
electrode
materials,
then
impedes
practical
application.
Here,
a
durable
nanocomposite
developed
carbon
nanotubes
graphene,
integrated
for
smart
wearable
applications,
such
as
facial
expression
exercise
posture
recognitions.
The
provides
abundant
channels
because
its
hierarchically
porous
structure.
Carbon
not
only
prevent
restacking
graphene
nanolayers,
but
also
connect
them
across
out‐plane
dimension.
present
high
degree
linearity
in
wide
range
with
sensitivity,
long
cycling
life
bending
strains
beyond
20
000
s.
Further,
bracelet
flexible
fabricated
accurate
recognition
badminton
exercise,
valuable
to
athlete
training.
physica status solidi (b),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 11, 2025
In
this
research
article,
magnetoelectric
composites
comprising
Cu
0.7
Co
0.3
Fe
2
O
4
(CCFO)
ferrite
and
PbZr
0.58
Ti
0.42
3
(PZT)
ferroelectric
phases
are
synthesized
using
solid‐state
reaction
methods
characterized
comprehensively
for
their
structural,
electrical,
magnetic
properties.
The
synthesis
involved
meticulous
preparation
of
high‐purity
oxides,
followed
by
presintering
final
sintering
steps
to
ensure
phase
formation
purity.
Two
fabrication
approaches,
particulate
(
y
)CCFO
+
(1
−
)
PZT
where
=
0.25,
0.5,
0.75
laminated
films
(CCFO/PZT/CCFO
PZT/CCFO/PZT),
explored,
each
showing
distinct
behaviors
in
terms
dielectric
constant,
loss
tangent,
temperature
dependence,
DC
resistivity,
hysteresis.
Particulate
exhibit
frequency‐dependent
influenced
particle
interactions,
while
demonstrate
more
complex
responses
attributed
interfacial
effects
layer
interactions.
Magnetic
properties
show
variations
saturation
magnetization,
coercivity,
remanence,
with
generally
exhibiting
superior
behaviors.
Moreover,
coupling
coefficients
were
evaluated,
revealing
higher
values
structures
due
enhanced
integration
phases.
This
study
underscores
the
importance
methodology
composite
architecture
tailoring
multifunctional
offering
insights
into
optimizing
performance
diverse
applications.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 12, 2025
Ionic
actuators
with
capability
of
electro-mechanical
transduction
are
emerging
as
a
useful
platform
for
artificial
intelligence
and
modern
medical
instruments.
However,
the
insufficient
ion
transport
inside
material
interfaces
usually
leads
to
limited
energy
efficiency
density
actuators.
Here,
we
report
polyrotaxane
interface
adjustable
based
on
sliding-ring
effect
highly-efficient
ionic
The
switch
status
channels
is
synchronous
actuation
strains,
barrier
interfacial
transfer
reduced.
As
result,
gets
significantly
improved.
as-delivered
devices
stronger
than
that
mammalian
skeletal
muscle.
Based
high
performances,
demonstrate
fiber-shape
soft
actuator
can
be
directly
injected
into
biological
tissue
just
using
syringe.
injectable
promising
surgical
navigation
physiological
monitoring.
Traditional
capacitive
mechanism
suffers
from
low
efficiency.
authors
sliding
ring
large
density.
Polymers,
Год журнала:
2024,
Номер
16(24), С. 3603 - 3603
Опубликована: Дек. 23, 2024
This
review
explores
the
integration
of
polymer
materials
into
piezoelectric
composite
structures,
focusing
on
their
application
in
sensor
technologies,
and
wearable
electronics.
Piezoelectric
composites
combining
ceramic
phases
like
BaTiO3,
KNN,
or
PZT
with
polymers
such
as
PVDF
exhibit
significant
potential
due
to
enhanced
flexibility,
processability,
electrical
performance.
The
synergy
between
high
sensitivity
ceramics
mechanical
flexibility
enables
development
advanced
for
biomedical
devices,
energy
conversion,
smart
infrastructure
applications.
discusses
evolution
lead-free
ceramics,
challenges
improving
polymer–ceramic
interfaces,
innovations
3D
printing
surface
functionalization,
which
enhance
charge
transfer
material
durability.
It
also
covers
effects
radiation
these
materials,
particularly
nuclear
applications,
strategies
resistance.
concludes
that
play
a
critical
role
advancing
technologies
by
addressing
environmental
functional
challenges,
paving
way
future
innovations.
