Advanced Materials Technologies,
Journal Year:
2024,
Volume and Issue:
9(10)
Published: March 18, 2024
Abstract
Simulation
and
experimental
studies
are
carried
out
on
single‐layer
double‐layer
embedded
metal
meshes
(SLEMM
DLEMM)
to
assess
their
performance
as
transparent
electromagnetic
interference
(EMI)
shielding.
The
structures
consist
of
silver
in
polyethylene
terephthalate
(PET).
As
a
electrode,
SLEMMs
exhibit
transparency
82.7%
sheet
resistance
0.61
Ωsq
−1
well
91.0%
1.49
.
This
corresponds
figures
merit
3101
2620,
respectively.
achieve
48.0
dB
EMI
shielding
efficiency
(SE)
the
frequency
range
8–18
GHz
(X‐
Ku‐bands)
with
91%
visible
transmission
56.2
SE
transmission.
Samples
stable
after
1000
bending
cycles
radius
curvature
4
mm
60
tape
test
cycles.
DLEMMs
fabricating
SLEMM
opposite
sides
substrate
where
distance
can
be
varied
using
spacer.
Simulations
performed
investigate
how
varying
spacer
between
two
layers
influences
SE.
fabricated
achieved
an
77.7
81.7%
may
have
wide
variety
applications
aerospace,
medical,
military
applications.
Small,
Journal Year:
2023,
Volume and Issue:
20(3)
Published: Sept. 12, 2023
Abstract
Flexible
composite
films
have
attracted
considerable
attention
due
to
great
potential
for
healthcare,
telecommunication,
and
aerospace.
However,
it
is
still
challenging
achieve
high
conductivity
multifunctional
integration,
mainly
poorly
designed
structures
of
these
films.
Herein,
a
novel
sandwich‐structured
assembly
strategy
proposed
fabricate
flexible
thin
made
Ag
nanowire
(AgNW)
core
MXene
layers
by
combination
spray
coating
vacuum
filtration
process.
In
this
case,
ultrathin
play
crucial
roles
in
constructing
compact
strongly
anchored
substrate
with
extensive
hydrogen‐bonding
interactions.
The
resultant
MXene/AgNW
(SMAFs)
exhibit
ultrahigh
electrical
(up
27193
S
cm
−1
),
resulting
exceptional
electromagnetic
interference
shielding
effectiveness
16
223.3
dB
2
g
impressive
Joule
heating
performance
rapid
rate
10.4
°C
s
.
Moreover,
the
uniform
SMAFs
can
also
be
facilely
cut
into
kirigami‐patterned
interconnects,
which
indicate
superior
strain‐insensitive
conductance
even
after
long‐term
exposure
extreme
temperatures.
demonstrated
offers
significant
paradigm
construct
next‐generation
integrated
electronics
practical
applications.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(5), P. 6382 - 6393
Published: Jan. 27, 2024
A
facile
and
novel
fabrication
method
is
demonstrated
for
creating
flexible
poly(ethylene
terephthalate)
(PET)-embedded
silver
meshes
using
crack
lithography,
reactive
ion
etching
(RIE),
ink.
The
width
spacing
in
a
waterborne
acrylic
emulsion
polymer
are
controlled
by
the
thickness
of
applied
stress
due
to
heating
evaporation.
Our
innovative
technique
eliminates
need
sputtering
ensures
stronger
adhesion
metal
PET
substrate.
Crack
trench
depths
over
5
μm
line
widths
under
have
been
achieved.
As
transparent
electrode,
our
embedded
Ag
exhibit
visible
transmission
91.3%
sheet
resistance
0.54
Ω/sq
as
well
93.7%
1.4
Ω/sq.
This
performance
corresponds
figures
merit
(σDC/σOP)
7500
4070,
respectively.
For
electromagnetic
interference
(EMI)
shielding,
achieve
shielding
efficiency
(SE)
42
dB
with
an
EMI
SE
37.4
transmission.
We
demonstrate
highest
electrode
lithography
approaches
literature
all
literature.
These
may
applications
electrodes,
solar
cells,
organic
light-emitting
diodes.
ACS Sustainable Resource Management,
Journal Year:
2024,
Volume and Issue:
1(2), P. 289 - 302
Published: Feb. 8, 2024
The
study
reports
on
the
microwave
electromagnetic
(EM)
shielding
performance
of
Fe3O4
nanoparticles
(NPs)
and
layered
structure
nitrogen-doped
sugar
cane
bagasse
(N-SCB)
derived
from
sugarcane
waste
product.
However,
SCB
is
prepared
through
a
high-temperature
pyrolysis
process
under
N2
H2
gases,
resulting
in
that
resembles
graphene.
Three
nanocomposites
(NCs)
are
synthesized
by
varying
NPs
N-SCB
ratios
to
their
impact
interference
(EMI)
performance,
optimizing
conductivity,
stability,
homogeneity,
etc.
presence
strong
chemical
interaction
between
was
confirmed
observation
Fe–O–C
bonding
O
1s
spectra
obtained
XPS
analysis.
chemically
incorporated
into
layer,
doped
layer
with
three-dimensional
network
structures,
thereby
enhancing
electrical
conductivity.
Additionally,
superior
magnetic
saturation
value
(Ms
=
67.63
emu/g)
via
VSM
analysis,
indicating
superparamagnetic
nature.
Furthermore,
surface
area
(236.80
m2/g)
decoration
examined
BET
HRTEM
analyses.
Notably,
complex
relative
permittivity
(εr′–jεr″
97.98–j58.93)
permeability
(μr′–jμr″
0.46–j1.08)
Fe3O4–N-SCB
(1:2)
ratio
were
found
be
higher
than
those
pure
material
other
different
NCs.
This
attributed
homogeneous
particulate
reduced
agglomeration
this
specific
NC.
Moreover,
enhanced
εr′–jεr″
μr′–jμr″
1:2
resulted
high
EMI
total
effectiveness
48.59
dB
at
8
GHz
X-band
region,
even
thickness
only
0.5
mm.
Advanced Materials Technologies,
Journal Year:
2024,
Volume and Issue:
9(10)
Published: March 18, 2024
Abstract
Simulation
and
experimental
studies
are
carried
out
on
single‐layer
double‐layer
embedded
metal
meshes
(SLEMM
DLEMM)
to
assess
their
performance
as
transparent
electromagnetic
interference
(EMI)
shielding.
The
structures
consist
of
silver
in
polyethylene
terephthalate
(PET).
As
a
electrode,
SLEMMs
exhibit
transparency
82.7%
sheet
resistance
0.61
Ωsq
−1
well
91.0%
1.49
.
This
corresponds
figures
merit
3101
2620,
respectively.
achieve
48.0
dB
EMI
shielding
efficiency
(SE)
the
frequency
range
8–18
GHz
(X‐
Ku‐bands)
with
91%
visible
transmission
56.2
SE
transmission.
Samples
stable
after
1000
bending
cycles
radius
curvature
4
mm
60
tape
test
cycles.
DLEMMs
fabricating
SLEMM
opposite
sides
substrate
where
distance
can
be
varied
using
spacer.
Simulations
performed
investigate
how
varying
spacer
between
two
layers
influences
SE.
fabricated
achieved
an
77.7
81.7%
may
have
wide
variety
applications
aerospace,
medical,
military
applications.
