Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 25, 2025
Abstract
The
integration
of
macroscopic
and
microscopic
structural
designs
plays
a
crucial
role
in
developing
high‐performance
electromagnetic
wave
(EMW)
absorber
devices.
In
this
work,
an
innovative
metamaterial
based
on
multi‐scale
design
is
introduced
to
address
the
challenge
narrowband
absorption.
Specifically,
at
scale,
highly
efficient
absorbing
material
(FCIP@SiO
2
@Ppy)
synthesized
through
integrated
optimization
strategy,
which
functional
layers
are
uniquely
combined
maximize
performance.
By
leveraging
heterogeneous
interfaces,
establishes
magneto‐electric
coupling
network,
ensuring
excellent
impedance
matching
significantly
enhancing
EMW
absorption
capacity
material.
Notably,
achieves
record
low
reflection
loss
(RL)
−66.66
dB
9.95
GHz
with
broad
bandwidth
5.92
(RL
≤
−10
dB),
subsequently
used
fabricate
device.
Building
upon
this,
inspired
by
compound
eye
structure
arthropods,
groundbreaking
proposed.
Simulations
reveal
achievement
ultra‐wideband
(2.75–18
GHz)
remarkably
thin
thickness
just
12
mm.
These
pioneering
results
present
effective
strategies
for
development
next‐generation
Cell Reports Physical Science,
Journal Year:
2024,
Volume and Issue:
5(7), P. 102097 - 102097
Published: July 1, 2024
The
rapid
development
of
intelligent
devices
imposes
new
demands
on
electromagnetic
wave
(EMW)-absorbing
materials,
especially
concerning
wide-spectrum
absorption,
frequency
band
manipulation,
and
multifunctional
integration.
However,
conventional
investigations
EMW-absorbing
materials
face
several
challenges
that
collectively
limit
the
effectiveness
existing
amid
growing
demands,
including
ambiguous
(EM)
loss
mechanisms,
impedance
mismatches,
deficiencies
in
integrated
design.
This
review
elucidates
EM
delineates
key
bridge
mechanisms
linking
microscopic
macroscopic
factors,
proposes
dielectric
polarization
models
to
clarify
mechanisms.
Additionally,
it
delves
into
unique
advantages
core-shell
structures
porous
optimization.
Finally,
introduces
fabrication
approaches
integrate
detailing
design
strategies
exploring
potential
applications.
By
consolidating
these
cutting-edge
achievements,
this
aims
guide
scientific
advancement
materials.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Sept. 26, 2024
Abstract
Atomic-scale
doping
strategies
and
structure
design
play
pivotal
roles
in
tailoring
the
electronic
physicochemical
property
of
electromagnetic
wave
absorption
(EMWA)
materials.
However,
relationship
between
configuration
(EM)
loss
mechanism
has
remained
elusive.
Herein,
drawing
inspiration
from
DNA
transcription
process,
we
report
successful
synthesis
novel
situ
Mn/N
co-doped
helical
carbon
nanotubes
with
ultrabroad
EMWA
capability.
Theoretical
calculation
EM
simulation
confirm
that
orbital
coupling
spin
polarization
Mn–N
4
–C
configuration,
along
cross
generated
by
structure,
endow
converters
enhanced
loss.
As
a
result,
HMC-8
demonstrates
outstanding
performance,
achieving
minimum
reflection
−63.13
dB
at
an
ultralow
thickness
1.29
mm.
Through
precise
tuning
graphite
domain
size,
HMC-7
achieves
effective
bandwidth
(EAB)
6.08
GHz
2.02
mm
thickness.
Furthermore,
constructing
macroscale
gradient
metamaterials
enables
ultrabroadband
EAB
12.16
only
5.00
mm,
maximum
radar
section
reduction
value
reaching
36.4
m
2
.
This
innovative
approach
not
advances
understanding
metal–nonmetal
co-doping
but
also
realizes
broadband
EMWA,
thus
contributing
to
development
mechanisms
applications.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 29, 2024
Abstract
Thermochemical
conversion
is
a
highly
effective
method
for
upgrading
organic
solid
wastes
into
high‐value
materials,
contributing
to
carbon
neutrality
and
peak,
emission
goals.
It
also
serves
as
pathway
develop
energy‐efficient
electromagnetic
wave
absorbing
(EMWA)
materials.
In
this
study,
fish
skin
successfully
in
situ
nitrify
Prussian
Blue
Fe
3
N
under
external
thermal
driving
condition,
resulting
high
saturation
magnetization
utilized.
The
N@C
demonstrates
outstanding
EMWA
property,
achieving
minimum
reflection
loss
of
−71.3
dB.
Furthermore,
by
introducing
cellulose
nanofiber,
portion
the
iron
nitride
transformed
carbide,
C/Fe
N@C.
This
composite
exhibits
enhanced
properties
owing
wider
local
charge
redistribution
stronger
electronic
interactions,
an
absorption
bandwidth
(
EAB
)
6.64
GHz.
Electromagnetic
simulations
first‐principles
calculations
further
elucidate
mechanism,
maximum
reduction
value
radar‐cross
section
reached
37.34
dB·m
2
.
design
multilayer
gradient
metamaterials
demonstrated
ultra‐broadband
11.78
paper
presents
efficient
strategy
atomic‐level
biomass
waste
utilization
prepare
N,
provides
novel
insights
between
metal
nitrides
carbides,
offers
promising
direction
development
advanced
Soft Science,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: Jan. 18, 2025
Heterointerface
engineering
has
drawn
considerable
interest
in
tuning
interfacial
polarization
and
promoting
impedance
matching.
Therefore,
it
become
a
key
strategy
for
optimizing
electromagnetic
wave
(EMW)
absorption.
This
comprehensive
review
primarily
focused
on
the
EMW
absorbing
strategies
of
polymer-based
materials,
emphasizing
critical
developments
heterointerface
engineering.
A
possible
mechanism
materials
was
proposed,
synergism
multi-components,
microstructure
design,
Key
innovations
structural
design
such
as
porous
structure,
multilayered
segregated
structure
are
explored,
highlighting
their
contributions
to
enhancing
Also,
highlights
latest
research
progress
advanced
conductive
insulating
with
desirable
absorption
performance;
fabrication
methods,
structures,
properties,
mechanisms
were
elucidated
detail.
challenges
presented
followed
by
some
future
perspectives.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 7, 2024
Abstract
High‐performance
microwave
absorption
materials
(MAM)
are
often
accompanied
by
synergistic
effects
of
multiple
loss
mechanisms,
but
the
contribution
share
various
mechanisms
has
been
neglected
to
provide
a
template
and
reference
for
design
MAM.
Here,
highly
conductive
2D
structure
is
designed
through
functional
group‐induced
modulation
strategy,
composite
L‐Ni@C
can
reach
an
effective
bandwidth
6.45
GHz
at
15%
fill
rate,
with
maximum
efficiency
99.9999%.
Through
layer‐by‐layer
analysis
mechanism,
it
found
that
strong
originates
from
polarization
heterogeneous
interface.
The
movement
space
charge
between
two‐phase
interface
forms
interfacial
electric
field,
in
situ
doping
nitrogen
cleverly
achieved
introduction
amino
groups,
which
significantly
enhances
rate
transfer
greatly
facilitates
electron
migration
polarization.
motion
law
field
also
simulated
using
COMSOL
simulation
software
illustrate
mechanism
interfaces.
This
work
fills
gap
structural
presents
new
theories
into
