Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Sept. 3, 2024
Abstract
The
new-generation
electronic
components
require
a
balance
between
electromagnetic
interference
shielding
efficiency
and
open
structure
factors
such
as
ventilation
heat
dissipation.
In
addition,
realizing
the
tunable
of
porous
shields
over
wide
range
wavelengths
is
even
more
challenging.
this
study,
well-prepared
thermoplastic
polyurethane/carbon
nanotubes
composites
were
used
to
fabricate
novel
periodic
flexible
metamaterials
using
fused
deposition
modeling
3D
printing.
Particularly,
investigation
focuses
on
optimization
pore
geometry,
size,
dislocation
configuration
material
thickness,
thus
establishing
clear
correlation
structural
parameters
property.
Both
experimental
simulation
results
have
validated
superior
performance
hexagon
derived
honeycomb
other
designs,
proposed
failure
size
(
D
f
≈
λ
/8
−
/5)
critical
inclined
angle
θ
≈43°
48°),
which
could
be
new
benchmarks
for
shielding.
proper
regulation
thickness
remarkably
enhance
maximum
capability
(85
95
dB)
absorption
coefficient
A
(over
0.83).
final
innovative
design
box
also
exhibits
good
effectiveness
across
broad
frequency
2.4
GHz),
opening
up
pathways
individualized
diversified
solutions.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 8, 2024
Abstract
The
development
of
nanomaterials
is
crucial
to
upgrading
modern
industry.
MXene
nanosheets
have
attracted
significant
attention
due
their
superb
resistance
permeation,
diverse
surface
chemical
properties,
impressive
mechanical
and
metal‐like
electrical
thermal
conductivity,
etc.,
providing
unique
advantages
in
various
technical
fields.
When
are
combined
with
polymers
form
functional
coatings,
applications
span
multiple
fields,
including
anticorrosion,
wear
resistance,
flame‐retardancy,
electromagnetic
interference
(EMI)
shielding,
de‐icing.
This
review,
conjunction
MXene's
barrier
property,
lubricity,
stability,
photothermal
conversion
discusses
detail
the
MXene‐based
polymer
coatings.
Additionally,
it
examines
dispersion
interaction
within
coatings
role
functionalized
polymers.
Finally,
based
on
current
research
status
emerging
needs,
challenges
future
opportunities
a
targeted
manner
discussed.
review
aims
summarize
existing
results
put
forward
an
objective
fair
point
view,
constructive
reference
for
nanofunctional
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(40)
Published: May 28, 2024
Abstract
The
revolution
of
millimeter‐wave
(mmWave)
technologies
is
prompting
a
need
for
absorption‐dominant
EMI
shielding
materials.
While
conventional
materials
struggle
in
the
mmWave
spectrum
due
to
their
reflective
nature,
this
study
introduces
novel
film
with
ultralow
reflection
(<0.05
dB
or
1.5%),
ultrahigh
absorption
(>70
98.5%),
and
superior
99.99999%)
across
triple
frequency
bands
thickness
400
µm.
By
integrating
magnetic
composite
layer
(MCL),
conductive
patterned
grid
(CPG),
double‐walled
carbon
nanotube
(DWCNTF),
specific
resonant
frequencies
electromagnetic
waves
are
transmitted
into
minimized
reflection,
trapped
dissipated
between
CPG
DWCNTF.
design
factors
frequencies,
such
as
geometry
MCL
refractive
index,
systematically
investigated
based
on
wave
propagation
theories.
This
innovative
approach
presents
promising
solution
effective
materials,
implications
mobile
communication,
radar
systems,
wireless
gigabit
communication.
Soft Science,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: Jan. 22, 2025
With
the
continuous
development
of
small
and
medium-sized
electronic
devices,
which
bring
convenience
to
people’s
lives,
electromagnetic
wave
(EMW)
pollution
has
emerged
as
a
significant
issue.
The
materials
with
interference
(EMI)
shielding
capabilities
for
protection
against
harmful
radiation
plays
vital
role.
Currently,
wide
range
multifunctional,
lightweight
EMI
have
been
created
address
various
environmental
requirements.
However,
single
material
difficult
meet
requirements
high-speed
transmission
equipment
because
when
such
devices
operate
at
high
speeds,
they
typically
generate
elevated
temperatures,
excessive
further
exacerbates
heat
accumulation,
reducing
both
efficiency
lifespan.
Therefore,
thermal
management
is
essential
lower
operating
temperatures
ensure
optimal
performance.
Phase
change
(PCMs)
are
known
storing
large
amount
energy,
potential
in
management,
so
flexible
phase
composites
(PCCs)
emerged.
This
review
provides
detailed
examination
based
on
fillers,
PCMs
latest
advancements
developing
new
PCCs.
Finally,
we
suggest
some
research
directions
PCCs,
hoping
contribute
rapid
advancement
next-generation
electronics,
human
artificial
intelligence.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
Abstract
The
desire
to
reduce
secondary
pollution
from
shielded
electronics
devices
demands
electromagnetic
interference
(EMI)
shields
with
high
green
index
(GI),
which
is
the
ratio
of
absorbance
over
reflectance.
Achieving
GI
values
simultaneously
shielding
effectiveness
(SE)
50
dB
a
serious
unresolved
challenge.
Reducing
impedance
mismatch
between
shield
and
free
space
key
reducing
reflection
incoming
radiation
enabling
more
penetration
into
body
for
absorption.
Here
sandwich
structure
gradient
conductivity
introduced
that
achieves
combination
(≈2)
SE
(70
dB).
top
layer
deliberately
uses
an
aerogel
low
MXene
nanoribbon
in
PEDOT:PSS
polymer
boost
GI.
also
reduces
permittivity
shield,
as
another
way
nonmagnetic
material.
bottom
consists
nanosheet–polymer
its
metal‐like
provide
SE.
This
successful
demonstration
expected
lead
other
novel
ways
create
EMI
shields.
