Advanced Materials Technologies,
Journal Year:
2023,
Volume and Issue:
8(7)
Published: Jan. 29, 2023
Abstract
Amid
the
rapid
development
of
electric
vehicles,
a
flexible
and
waterproof
radiant
heater
that
can
withstand
repeated
bending
washing
is
highly
desirable.
Herein,
freestanding,
ultra‐flexible,
washable
joule
constructed
using
biocompatible
poly(styrene‐isoprene‐styrene)
(SIBS)
polymer
as
binder
carbon
black
(CB)
heating
material.
By
controlling
amount
CB
thickness
film,
minimum
resistivity,
conductivity
26
mΩ
cm
7.4
S
−1
,
respectively,
achieved.
Remarkably,
28%
CB/SIBS
film
reach
maximum
temperature
201
°C
while
maintaining
stable
at
130
for
ON/OFF
cycles.
Time‐of‐flight
secondary
ion
mass
spectrometry
post‐mortem
material
analysis
shows
1
h
stability
test
has
no
sign
degradation
films
remain
extremely
stable.
The
also
show
exceptional
electrothermal
performance
after
carrying
out
mechanical
property
tests
such
(over
30°),
repetitive
(1000
cycles),
twisting
(two
turns),
(soaked
in
distilled
water
over
12
h).
These
outstanding
performances
incorporate
extreme
chemical
flexibility
proposing
CB/SIBS‐based
elements
hold
great
potential
numerous
practical
applications,
systems
vehicles
wearable
electronics.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: June 12, 2024
Abstract
Direct
chemical
vapor
deposition
(CVD)
growth
of
graphene
on
dielectric/insulating
materials
is
a
promising
strategy
for
subsequent
transfer-free
applications
graphene.
However,
noncatalytic
substrates
faced
with
thorny
issues,
especially
the
limited
rate,
which
severely
hinders
mass
production
and
practical
applications.
Herein,
glass
fiber
fabric
(GGFF)
developed
by
CVD
fabric.
Dichloromethane
applied
as
carbon
precursor
to
accelerate
growth,
has
low
decomposition
energy
barrier,
more
importantly,
produced
high-electronegativity
Cl
radical
can
enhance
adsorption
active
species
Cl–CH
2
coadsorption
facilitate
H
detachment
from
edges.
Consequently,
rate
increased
~3
orders
magnitude
utilization
~960-fold,
compared
conventional
methane
precursor.
The
advantageous
hierarchical
conductive
configuration
lightweight,
flexible
GGFF
makes
it
an
ultrasensitive
pressure
sensor
human
motion
physiological
monitoring,
such
pulse
vocal
signals.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Aug. 9, 2024
Graphene
growth
on
widely
used
dielectrics/insulators
via
chemical
vapor
deposition
(CVD)
is
a
strategy
toward
transfer-free
applications
of
CVD
graphene
for
the
realization
advanced
composite
materials.
Here,
we
develop
graphene-skinned
alumina
fibers/fabrics
(GAFs/GAFFs)
through
commercial
(AFs/AFFs).
We
reveal
vapor-surface-solid
model
non-metallic
substrate,
which
distinct
from
well-established
vapor-solid
conventional
non-catalytic
substrates,
but
bears
closer
resemblance
to
that
observed
catalytic
metallic
substrates.
The
metalloid-catalytic
AFs/AFFs
resulted
in
reduced
temperature
(~200
°C
lower)
and
accelerated
rate
(~3.4
times
faster)
compared
obtained
representative
counterpart,
quartz
fiber.
fabricated
GAFF
features
wide-range
tunable
electrical
conductivity
(1-15000
Ω
sq−1),
high
tensile
strength
(>1.5
GPa),
lightweight,
flexibility,
hierarchical
macrostructure.
These
attributes
are
inherited
both
AFF,
making
promising
various
including
heating
electromagnetic
interference
shielding.
Beyond
laboratory
level
preparation,
stable
mass
production
large-scale
has
been
achieved
home-made
roll-to-roll
system
with
capacity
468-93600
m2/year
depending
product
specifications,
providing
foundations
subsequent
industrialization
this
material,
enabling
its
widespread
adoption
industries.
Chemical
insulators
can
promote
application
functional
authors
report
process
alumina,
showing
their
Applied Physics Reviews,
Journal Year:
2023,
Volume and Issue:
10(3)
Published: July 20, 2023
Fibrous
wearable
and
implantable
devices
have
emerged
as
a
promising
technology,
offering
range
of
new
solutions
for
minimally
invasive
monitoring
human
health.
Compared
to
traditional
biomedical
devices,
fibers
offer
possibility
modular
design
compatible
with
large-scale
manufacturing
plethora
advantages
including
mechanical
compliance,
breathability,
biocompatibility.
The
generation
fibrous
can
revolutionize
easy-to-use
accessible
health
systems
by
serving
building
blocks
most
common
wearables
such
fabrics
clothes.
Despite
significant
progress
in
the
fabrication,
materials,
application
there
is
still
notable
absence
comprehensive
systematic
review
on
subject.
This
paper
provides
an
overview
recent
advancements
development
electronics.
We
categorized
these
into
three
main
areas:
processes,
platforms,
applications,
outlining
their
respective
merits
limitations.
concludes
discussing
outlook
challenges
that
lie
ahead
fiber
bioelectronics,
providing
holistic
view
its
current
stage
development.
Small Methods,
Journal Year:
2022,
Volume and Issue:
6(7)
Published: May 24, 2022
The
lightweight,
flexible,
high-performance
electrothermal
material
is
in
high
demand
object
thermal
management.
Graphene
glass
fiber
fabric
(GGFF)
characterized
by
excellent
electrical
conductivity,
light
weight,
and
flexibility,
showing
superiorities
as
an
material.
However,
the
traditional
single-carbon-precursor
chemical
vapor
deposition
(CVD)
graphene
growth
strategy
commonly
suffers
from
severe
thickness
nonuniformity
of
large-sized
film
along
gas-flowing
direction.
Herein,
a
complementary
CVD
based
on
simultaneous
introduction
high-
low-decomposition-energy-barrier
mixed
carbon
precursors
developed.
In
this
way,
large-area
uniform
GGFF
with
dramatically
decreased
coefficient
fabricated
(0.260
40
cm
×
4
cm).
GGFF-based
heater
presents
widely
tunable
temperature
range
(20-170
°C)
at
low
working
voltage
(<10
V)
heating
(171.4
±
3.6
°C
20
15
cm),
which
realizes
remarkable
anti/deicing
performances
under
energy
consumption
(fast
ice
melting
rate
79
s
mm-1
0.066
kWh
m-2
).
possesses
substantial
advantages
for
applications
management,
fabrication
shows
reliable
scalability
universality,
can
be
extended
to
synthesis
various
materials.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(42)
Published: May 12, 2022
Abstract
2D
graphene
with
tremendous
novel
properties
is
an
ideal
material
for
optical
and
optoelectronic
applications.
Meanwhile,
photonic
crystal
fibers
(PCFs)
have
been
recognized
as
next‐generation
that
possess
a
designable
porous
structure,
rich
functions,
different
working
mechanisms.
Recently,
the
integration
of
PCF
has
formed
new
hybrid
fiber,
fiber
(Gr‐PCF),
which
exhibits
extremely
strong
tunable
light–matter
interaction
across
broadband
spectrum
range
opens
up
interdisciplinary
research
direction.
In
this
review,
recent
studies
on,
achievements
in
graphene‐traditional
Gr‐PCFs
summarized
from
aspects
development
process,
preparation
method,
device
application.
First,
characteristics
PCFs
are
introduced.
The
discussion
continued
existing
fabrication
technologies
fibers.
Next,
chemical
vapor
deposition
method
elaborated.
Then,
devices
based
on
fibers,
Gr‐PCFs,
other
presented.
To
conclude,
challenges
perspectives
presented
to
encourage
advanced
Gr‐PCF
study.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(51)
Published: Oct. 10, 2022
Abstract
Radiative
thermal
management
has
attracted
increasing
attention
for
the
advantages
of
energy
saving
and
carbon
emission
reduction.
Infrared
radiation
coatings
are
widely
adopted
to
alleviate
low
infrared
emissivity
commonly
used
metal
alloy
electrothermal
materials.
However,
traditional
faced
with
issues
unsteady
waveband
emissivity,
interfacial
adhesion
substrates,
poor
long‐term
stability.
Herein,
a
bush‐shaped
vertical
graphene
(BVG)
grown
on
nichrome
(Ni–Cr)
wire
is
demonstrated,
relying
which
BVG/Ni–Cr
presents
high
blackbody‐like
≈0.96
across
wide
wavelength
range
(2.5–18
µm).
When
radiative
heating,
achieves
efficiency
an
order
magnitude
improvement
compared
bare
Ni–Cr
wire,
as
well
superior
deformation
stabilities.
These
findings
reveal
impressive
potentials
BVG
excellent
material
energy‐efficient
management.
