Nano-Micro Letters,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: Feb. 26, 2025
Abstract
To
adapt
to
the
trend
of
increasing
miniaturization
and
high
integration
microelectronic
equipments,
there
is
a
demand
for
multifunctional
thermally
conductive
(TC)
polymeric
films
combining
excellent
flame
retardancy
low
dielectric
constant
(
ε
).
date,
have
been
few
successes
that
achieve
such
performance
portfolio
in
polymer
due
their
different
even
mutually
exclusive
governing
mechanisms.
Herein,
we
propose
trinity
strategy
creating
rationally
engineered
heterostructure
nanoadditive
(FG@CuP@ZTC)
by
situ
self-assembly
immobilization
copper-phenyl
phosphonate
(CuP)
zinc-3,
5-diamino-1,2,4-triazole
complex
(ZTC)
onto
fluorinated
graphene
(FG)
surface.
Benefiting
from
synergistic
effects
FG,
CuP,
ZTC
bionic
lay-by-lay
(LBL)
strategy,
as-fabricated
waterborne
polyurethane
(WPU)
nanocomposite
film
with
30
wt%
FG@CuP@ZTC
exhibits
55.6%
improvement
limiting
oxygen
index
(LOI),
66.0%
40.5%
reductions
peak
heat
release
rate
total
release,
respectively,
93.3%
increase
tensile
strength
relative
pure
WPU
between
ZTC.
Moreover,
presents
thermal
conductivity
λ
)
12.7
W
m
−1
K
2.92
at
10
6
Hz.
This
work
provides
commercially
viable
rational
design
develop
high-performance
films,
which
hold
great
potential
as
advanced
dissipators
high-power-density
microelectronics.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: May 16, 2024
Abstract
Phase
change
materials
(PCMs)
offer
a
promising
solution
to
address
the
challenges
posed
by
intermittency
and
fluctuations
in
solar
thermal
utilization.
However,
for
organic
solid–liquid
PCMs,
issues
such
as
leakage,
low
conductivity,
lack
of
efficient
solar-thermal
media,
flammability
have
constrained
their
broad
applications.
Herein,
we
present
an
innovative
class
versatile
composite
phase
(CPCMs)
developed
through
facile
environmentally
friendly
synthesis
approach,
leveraging
inherent
anisotropy
unidirectional
porosity
wood
aerogel
(nanowood)
support
polyethylene
glycol
(PEG).
The
modification
process
involves
incorporation
phytic
acid
(PA)
MXene
hybrid
structure
evaporation-induced
assembly
method,
which
could
impart
non-leaking
PEG
filling
while
concurrently
facilitating
conduction,
light
absorption,
flame-retardant.
Consequently,
as-prepared
wood-based
CPCMs
showcase
enhanced
conductivity
(0.82
W
m
−1
K
,
about
4.6
times
than
PEG)
well
high
latent
heat
135.5
kJ
kg
(91.5%
encapsulation)
with
durability
stability
throughout
at
least
200
heating
cooling
cycles,
featuring
dramatic
conversion
efficiency
up
98.58%.
In
addition,
synergistic
effect
MXene,
flame-retardant
performance
has
been
significantly
enhanced,
showing
self-extinguishing
behavior.
Moreover,
excellent
electromagnetic
shielding
44.45
dB
was
endowed
CPCMs,
relieving
contemporary
health
hazards
associated
waves.
Overall,
capitalize
on
exquisite
cell
transport
development
multifunctional
showcasing
operational
principle
proof-of-concept
prototype
system.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: April 15, 2024
With
the
diversified
development
of
big
data,
detection
and
precision
guidance
technologies,
electromagnetic
(EM)
functional
materials
devices
serving
multiple
spectrums
have
become
a
hot
topic.
Exploring
multispectral
response
is
challenging
meaningful
scientific
question.
In
this
study,
MXene/TiO
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: April 22, 2024
Abstract
The
utilization
of
electromagnetic
waves
is
rapidly
advancing
into
the
millimeter-wave
frequency
range,
posing
increasingly
severe
challenges
in
terms
pollution
prevention
and
radar
stealth.
However,
existing
absorbers
are
still
inadequate
addressing
these
issues
due
to
their
monotonous
magnetic
resonance
pattern.
In
this
work,
rare-earth
La
3+
non-magnetic
Zr
4+
ions
simultaneously
incorporated
M-type
barium
ferrite
(BaM)
intentionally
manipulate
multi-magnetic
behavior.
By
leveraging
contrary
impact
on
magnetocrystalline
anisotropy
field,
restrictive
relationship
between
intensity
successfully
eliminated.
peak-differentiating
imitating
results
confirm
that
significant
phenomenon
emerges
around
35
GHz
reinforced
exchange
coupling
effect
Fe
2+
ions.
Additionally,
Mössbauer
spectra
analysis,
first-principle
calculations,
least
square
fitting
collectively
identify
additional
doping
leads
a
profound
rearrangement
occupation
thus
makes
portion
polarization/conduction
loss
increase
gradually.
As
consequence,
–Zr
co-doped
BaM
achieves
an
ultra-broad
bandwidth
12.5
+
covering
from
27.5
40
GHz,
which
holds
remarkable
potential
for
atmospheric
window
GHz.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: April 15, 2024
Materials
exhibiting
high-performance
electromagnetic
wave
absorption
have
garnered
considerable
scientific
and
technological
attention,
yet
encounter
significant
challenges.
Developing
new
materials
innovative
structural
design
concepts
is
crucial
for
expanding
the
application
field
of
absorption.
Particularly,
hierarchical
structure
engineering
has
emerged
as
a
promising
approach
to
enhance
physical
chemical
properties
materials,
providing
immense
potential
creating
versatile
materials.
Herein,
an
exceptional
multi-dimensional
was
meticulously
devised,
unleashing
full
microwave
attenuation
capabilities
through
in
situ
growth,
self-reduction,
multi-heterogeneous
interface
integration.
The
features
three-dimensional
carbon
framework,
where
magnetic
nanoparticles
grow
on
skeleton,
necklace-like
structure.
Furthermore,
nanosheets
assemble
within
this
framework.
Enhanced
impedance
matching
achieved
by
precisely
adjusting
component
proportions,
intelligent
integration
diverse
interfaces
bolstered
dielectric
polarization.
obtain
Fe
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Aug. 16, 2024
Defect
engineering
in
transition
metal
oxides
semiconductors
(TMOs)
is
attracting
considerable
interest
due
to
its
potential
enhance
conductivity
by
intentionally
introducing
defects
that
modulate
the
electronic
structures
of
materials.
However,
achieving
a
comprehensive
understanding
relationship
between
micro-structures
and
electromagnetic
wave
absorption
capabilities
remains
elusive,
posing
substantial
challenge
advancement
TMOs
absorbers.
The
current
research
describes
process
for
deposition
MoO
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Oct. 16, 2024
Developing
advanced
stealth
devices
to
cope
with
radar-infrared
(IR)
fusion
detection
and
diverse
application
scenarios
is
increasingly
demanded,
which
faces
significant
challenges
due
conflicting
microwave
IR
cloaking
mechanisms
functional
integration
limitations.
Here,
we
propose
a
multiscale
hierarchical
structure
design,
integrating
wrinkled
MXene
shielding
layer
flexible
Fe
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 27, 2024
Abstract
By
manipulating
their
asymmetric
electronic
spin
states,
the
unique
structures
and
unsaturated
coordination
environments
of
single
atoms
can
be
effectively
harnessed
to
control
magnetic
properties.
In
this
research,
first
investigation
is
presented
into
regulation
properties
through
states
atoms.
Magnetic
single‐atom
one‐dimensional
materials,
M‐N‐C/ZrO
2
(M
=
Fe,
Co,
Ni),
with
varying
are
design
synthesize
based
on
orbital
structure
model.
The
SAs
3
d
electron
composite
M‐N‐C
modulates
magneto
physical
triggers
a
natural
resonance
loss,
which
achieves
controllable
tuning
effective
absorption
band
under
low‐frequency
conditions.
minimum
reflection
loss
(
RL
min
)
reach
‐69.71
dB,
bandwidth
EAB
ratio
as
high
91%
(2–18
GHz).
current
work
provides
path
toward
achieving
modulation
electromagnetic
wave
bands
by
exploring
mechanism
atomic
even
level
interactions
influence
modulation.
