Materials Horizons,
Год журнала:
2024,
Номер
11(7), С. 1679 - 1688
Опубликована: Янв. 1, 2024
Due
to
the
prevalence
of
electronic
devices,
intelligent
sensors
have
attracted
much
interest
for
detecting
and
providing
alarms
with
respect
indoor
electrical
safety.
Nonetheless,
how
effectively
identify
various
safety
hazards
remains
a
challenge.
In
this
study,
we
fabricated
single-walled
carbon
nanotube/poly(3-hexylthiophene-2,5-diyl)
(SWCNT/P3HT)
composites
exceptional
bifunctional
thermoelectric
photoelectric
responses.
Through
synergy
thermo-/photoelectric
effects,
yielded
greatly
enhanced
output
voltages
compared
use
effects
alone.
Interestingly,
modes
heat
transfer
can
be
distinguished
using
nominal
Seebeck
coefficients.
Based
on
remarkable
deviations
in
coefficients,
developed
capable
identifying
monitoring
diverse
conditions,
including
overheating,
fire,
air
conditioning
flow.
This
pioneering
investigation
proposes
novel
avenue
designing
that
recognize
hence
monitor
hazards.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Март 11, 2024
Despite
notable
progress
in
thermoelectric
(TE)
materials
and
devices,
developing
TE
aerogels
with
high-temperature
resistance,
superior
performance
excellent
elasticity
to
enable
self-powered
monitoring/warning
industrial
wearable
applications
remains
a
great
challenge.
Herein,
highly
elastic,
flame-retardant
high-temperature-resistant
aerogel,
made
of
poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/single-walled
carbon
nanotube
(PEDOT:PSS/SWCNT)
composites,
has
been
fabricated,
displaying
attractive
compression-induced
power
factor
enhancement.
The
as-fabricated
sensors
the
aerogel
can
achieve
accurately
pressure
stimuli
detection
wide
temperature
range
monitoring.
Subsequently,
flexible
generator
is
assembled,
consisting
25
connected
series,
capable
delivering
maximum
output
400
μW
when
subjected
difference
300
K.
This
demonstrates
its
outstanding
heat
harvesting
capability
promising
application
prospects
for
real-time
monitoring
on
pipelines.
Moreover,
designed
sensing
glove
realize
precise
wide-range
detection,
warning
accurate
recognition
human
hand
gestures.
aerogel-based
intelligent
system
developed
firefighters
desired
sensitive
fire
capability.
Benefitting
from
these
desirable
properties,
elastic
present
various
including
monitoring,
overheat
warning,
waste
energy
recycling
even
healthcare.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Июль 10, 2024
Abstract
Fire
warning
is
vital
to
human
life,
economy
and
ecology.
However,
the
development
of
effective
systems
faces
great
challenges
fast
response,
adjustable
threshold
remote
detecting.
Here,
we
propose
an
intelligent
self-powered
IoT
fire
system,
by
employing
single-walled
carbon
nanotube/titanium
carbide
thermoelectric
composite
films.
The
flexible
films,
prepared
a
convenient
solution
mixing,
display
p-type
characteristic
with
excellent
high-temperature
stability,
flame
retardancy
TE
(power
factor
239.7
±
15.8
μW
m
−1
K
−2
)
performances.
comprehensive
morphology
structural
analyses
shed
light
on
underlying
mechanisms.
And
assembled
devices
(TEDs)
exhibit
voltages
(1–10
mV).
Excitingly,
ultrafast
response
time
~
0.1
s
at
1
mV
voltage
achieved,
rivaling
many
state-of-the-art
systems.
Furthermore,
reveal
outstanding
stability
after
50
repeated
cycles
desired
durability
even
undergoing
180
days
air
exposure.
Finally,
TED-based
wireless
system
has
been
developed
coupling
amplifier,
analog-to-digital
converter
Bluetooth
module.
By
combining
characteristics,
signal
transmission,
TE-based
hybrid
here
promising
for
next-generation
applications.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
Achieving
dual
functionalities
of
hydrophobicity
and
excellent
microwave
transmission
in
a
single
material
remains
significant
challenge,
especially
for
advanced
applications
aerospace,
telecommunications,
navigation
engineering.
Inspired
by
natural
designs
like
chestnut
burrs,
bioinspired
polyaniline
(PANI)
particles
with
tunable
micro-/nanostructures
through
facile
template-free
polymerization
process
have
been
developed.
By
regulating
the
polarity
reaction
system,
temperature,
time,
various
hierarchical
structures,
including
cross-linked
nanosheets,
burr-like
spheres,
starburst
flower-like
are
synthesized.
The
spiny
projections
surface
roughness
endow
unique
structure,
achieving
superior
properties.
formation
structures
is
driven
intermolecular
interactions
during
nucleation
growth
processes.
presence
both
hydrophobic
hydrophilic
domains
within
PANI
leads
to
coexistence
large
water
contact
angles
up
152°
high
energy.
optimized
structure
minimizes
charge
carrier
mobility,
dipole
relaxation,
dielectric
loss.
A
efficiency
96%
achieved
these
combined
factors.
disclosing
relationship
between
wettability,
properties,
design
protocol
bionic
regulation
established
achieve
superhydrophobic
microwave-transparent
functions.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(27)
Опубликована: Март 5, 2024
Abstract
Fiber‐based
flexible
thermoelectric
(TE)
generators
are
highly
desirable
due
to
their
capability
convert
thermal
energy
into
electricity
and
potential
applications
in
wearable
electronics.
High‐performance
poly(3,4‐ethylene
dioxythiophene):poly(styrene
sulfonate)
(PEDOT:PSS)/Tellurium
(Te)
composite
TE
fibers
have
been
successfully
developed
via
a
continuous
wet‐spinning
approach
followed
by
sulphuric
acid
treatment.
With
simple
pre‐modification
Te
nanowires,
the
inorganic
fillers
form
uniform
distribution
PEDOT:PSS.
At
optimal
condition,
exhibit
power
factor
of
233.5
µW
m
−1
K
−2
mechanical
strength
205
MPa,
which
among
highest
values
reported
so
far
for
PEDOT:PSS‐based
fibers.
From
viewpoint
property
enhancement
mechanism,
understanding
morphology
carrier
transport
behavior
1D
organic/inorganic
remains
still
challenging.
On
basis
series
PEDOT:PSS/Te
with
varying
fractions,
orientations
both
organic
constituents
quantitatively
evaluated.
Their
electrical
conductivities
Seebeck
coefficients
also
analyzed
modified
series‐parallel
models
filtering
theory.
This
work
may
not
only
provide
universal
produce
high‐performance
various
applications,
but
help
understand
charge
between
heterogeneous
phases
composite.
