Journal of Coatings Technology and Research,
Год журнала:
2024,
Номер
21(6), С. 1945 - 1954
Опубликована: Окт. 14, 2024
Abstract
The
thermoelectric
properties
of
fully
sprayed
thin
films
poly(3-hexylthiophen-2,5-diyl)
(P3HT)
doped
with
chloroauric
acid
are
investigated
for
different
film
thicknesses.
thickness
increases
logarithmically
increasing
amount
deposited
material
on
the
surfaces.
Both
electrical
conductivity
and
measured
Seebeck
coefficients
show
an
optimal
polymer
layer
between
275
310
nm
yield
a
maximum
power
factor
$$(1.77\,\pm
\,0.22)
\frac{\mu
\text
{W}}{\text
{m}\cdot
{K}^2}$$
(1.77±0.22)μWm·K2
.
optimum
results
from
dopant
molecules
per
monomer
1.1
1.3
at
these
ratios
P3HT
HAuCl
$$_4$$
4
fabrication.
Science,
Год журнала:
2024,
Номер
386(6727), С. 1265 - 1271
Опубликована: Дек. 12, 2024
Limited
flexibility,
complex
manufacturing
processes,
high
costs,
and
insufficient
performance
are
major
factors
restricting
the
scalability
commercialization
of
flexible
inorganic
thermoelectrics
for
wearable
electronics
other
high-end
cooling
applications.
We
developed
an
innovative,
cost-effective
technology
that
integrates
solvothermal,
screen-printing,
sintering
techniques
to
produce
thermoelectric
film.
Our
printable
film,
comprising
Bi
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.
Materials Futures,
Год журнала:
2023,
Номер
3(1), С. 012103 - 012103
Опубликована: Ноя. 14, 2023
Abstract
Owing
to
the
capability
of
conversion
between
thermal
energy
and
electrical
their
advantages
light
weight,
compactness,
noise-free
operation,
precision
reliability,
wearable
thermoelectrics
show
great
potential
for
diverse
applications.
Among
them,
weavable
thermoelectrics,
a
subclass
with
inherent
flexibility,
wearability,
operability,
find
utility
in
harnessing
waste
heat
from
irregular
sources.
Given
rapid
advancements
this
field,
timely
review
is
essential
consolidate
progress
challenge.
Here,
we
provide
an
overview
state
thermoelectric
materials
devices
smart
textiles,
encompassing
mechanisms,
materials,
fabrications,
device
structures,
applications
recent
advancements,
challenges,
prospects.
This
can
serve
as
valuable
reference
researchers
field
flexible
Advanced Materials Technologies,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 6, 2025
Abstract
Aerosol
jet
printing
(AJP)
is
a
cutting‐edge
additive
manufacturing
technique,
ideal
for
fabricating
conformal
electronics
due
to
its
extended
working
distance,
simplicity,
and
environmental
sustainability.
However,
achieving
optimal
resolution
hindered
by
complex
interactions
between
aerosol
droplets
substrates,
as
well
the
influence
of
various
process
parameters.
This
study
focuses
on
precise
AJP
control
enable
high‐resolution
fabrication.
Through
randomized
single‐factor
experiments,
effects
gas
flow
rates,
focusing
ratio,
print
speed,
highlighting
role
back
pressure
limits
are
examined.
A
computational
fluid
dynamics
model,
incorporating
accurate
particle
size
data,
predicts
stream
width
expedite
operating
window
identification.
The
interaction
mechanisms
substrates
elucidated,
5
µm.
precision
protocol
developed,
ensuring
high‐quality
features
with
resolutions
ranging
from
10
300
µm
across
diverse
3D
without
overspray.
successful
integration
heater,
temperature
sensor,
display
demonstrates
AJP's
potential
multi‐functional
electronics.
Physics of Fluids,
Год журнала:
2024,
Номер
36(10)
Опубликована: Окт. 1, 2024
Electrohydrodynamic
(EHD)
printing
enables
large-area,
ultra-high-resolution
manufacturing
across
a
broad
range
of
ink
viscosities,
but
inevitably
encounters
difficulties
when
on
electrically
insulating
three-dimensional
substrates
due
to
unpredictable
electric
field
and
surface
residual
charges.
To
overcome
these
obstacles,
novel
approach
called
plasma-induced
electrohydrodynamic
(PiE)
has
been
proposed.
PiE
employs
plasma
directly
create
controllable
local
charge
region
substrate
surfaces,
which
triggers
EHD
ejection
mitigates
the
effect
However,
underlying
mechanisms
jetting
behavior
with
respect
parameters,
such
as
charge-induced
field,
remain
unexplored.
Here,
we
conduct
numerical
investigation,
based
Taylor–Melcher
leaky
dielectric
model
level
set
method,
printing.
We
first
introduce
dynamics
throughout
entire
process.
Then,
carry
out
comprehensive
investigation
under
four
crucial
parameters:
amount
preset
charge,
radius
duration
liquid
electrical
conductivity.
By
analyzing
induced
density,
fluid
velocity,
jet
diameters,
deposited
droplet
sizes
obtained
from
results,
elucidate
influence
parameters
dynamic
behavior,
durations
process,
quality.
These
findings
offer
valuable
insights
into
jetting,
advancing
understanding
optimization
methods
for
this
useful
micro-/nano-manufacturing
technology.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 3, 2025
Abstract
The
Selective
Metallization
Technique
shows
promise
for
roll-to-roll
in-line
patterning
of
flexible
electronics
using
evaporated
metals,
but
challenges
arise
when
applied
to
sputtering
functional
materials.
This
study
overcomes
these
with
simultaneous
Bi-Sb-Te
and
evaporation
metal
(Ag
or
Cu)
thermoelectric
layers
Technique.
Large-scale
manufacturing
is
demonstrated
through
processing
a
0.8
m
wide
polymer
web
at
25
m/min,
achieving
high-throughput
production
thin-film
patterns
nanometer
thickness.
room-temperature-deposited
material
system
exhibits
significantly
enhanced
performance
facilitates
an
n-type-to-p-type
transition
in
the
Cu-
Ag-containing
Bi-Sb-Te-based
composite
film.
Here,
we
show
that
while
applying
Technique,
modifies
impact
residual
oil
on
Bi-Sb-Te,
which
can
be
effectively
removed
few
seconds
plasma
exposure,
fabricated
devices
are
validated
wearable
applications
utilizing
coiled-up
wristband
design.
