Design of Gel‐Based Materials for Electromagnetic Wave Absorption
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 20, 2025
Abstract
Over
the
past
20
years,
there
is
a
shift
of
research
and
development
in
electromagnetic
wave
(EMW)
absorption
materials
toward
exploiting
unique
structure
composition
gel‐based
based
to
manipulate
EMWs.
In
this
article,
it
will
review
by
focusing
on
applications
various
gels
for
EMW
absorption,
including
aerogels,
hydrogels,
xerogels,
organic
gels,
as
well
ionogels.
This
study
highlights
some
new
mechanistic
insights
design
strategies
dielectric
loss,
magnetic
electro‐magnetic
loss
absorbers.
For
an
in‐depth
understanding
into
these
recent
areas,
discuss
historic
perspectives
absorption.
Especially,
emphasizes
advantages
multifunctional
Finally,
pending
current
challenges
prospects
performance
tuning
absorber
are
presented.
Язык: Английский
Designing Lightweight Honeycomb-Structured CB/SiO2 Composites for Exceptional Broadband Microwave Absorption through Nanoscale and Macrostructural Optimization
Carbon,
Год журнала:
2025,
Номер
unknown, С. 120249 - 120249
Опубликована: Март 1, 2025
Язык: Английский
Anion Doping Synergistic Strategy Achieving Multi‐Interfaces and Modulated Dielectric Coupling for Efficient Electromagnetic Response
Small Methods,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 9, 2025
Abstract
Efficient
microwave
absorbers
are
needed
to
address
the
electromagnetic
pollution
caused
by
proliferation
of
new
radio
technologies
and
equipment.
Excellent
absorption
performance
can
be
achieved
controlling
dielectric
constant.
Heteroatom‐doped
bimetallic
materials
promising
wave
(EMA)
due
their
tunable
structures
low
cost.
In
particular,
presence
anionic
sites
significantly
affects
constant
electrical
conductivity.
Herein,
a
1D
carbon
nanofiber
material
is
prepared
encapsulating
FeCo
nanoparticles
in
fiber
cavity
electrostatic
spinning.
Subsequently,
tellurization,
vulcanization,
selenization
processes
carried
out.
FeTe
2
/
CoTe
@C
exhibits
stronger
conductivity
loss
lower
electronegativity
Te.
The
clever
configuration
,
C
heterostructures
obtained
Te
doping
generates
multi‐heterogeneous
interfaces
that
facilitate
charge
migration
enhance
interfacial
polarization,
obtaining
excellent
EMA
performance.
/CoTe
an
optimum
minimum
reflection
(RL
min
)
−51.1
dB
with
matching
thickness
2.0
mm,
effective
bandwidth
(EAB)
reaches
4.2
GHz.
Radar
cross‐section
(RCS)
calculations
show
great
potential
for
practical
military
stealth
technology.
This
study
offers
novel
guidance
improving
properties
transition
metal
matrix
composites
via
coordination
modulation.
Язык: Английский
Intrinsically Stretchable Multilayer Film with Adjustable EMI Shielding and Multifunctionality for Wearable Electronics in Virtual and Augmented Reality
Nano Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 15, 2025
Wearable
electronics,
particularly
for
virtual
and
augmented
reality
(VR/AR),
require
flexible
films
with
sensing,
motion
detection,
electromagnetic
interference
(EMI)
shielding
capabilities.
However,
current
often
exhibit
unsatisfactory
stretchability
integration
of
multifunctionality.
Herein,
we
present
a
multilayer
electronic
film
that
addresses
these
challenges
by
combining
conductive
silver
nanowire
network
EMI
shielding,
graphene-based
sensing
layer
liquid-metal-infused
shape
deformation
adjustable
stiffness.
The
demonstrates
exceptional
(∼314%)
outstanding
effectiveness
(68675
dB/mm),
along
remarkable
sensitivity
achieving
gauge
factor
715.
These
performance
metrics
position
the
as
leading
stretchable
material,
an
balance
between
strain-sensing
capabilities,
stretchability.
advancements
enable
reliable
human
customizable
durable,
adaptable
deformation,
offering
substantial
potential
VR/AR
devices
other
applications.
Язык: Английский