Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 21, 2025
AgCu(Te,
Se,
S)
alloys,
as
one
of
the
rare
p-type
plastic
inorganic
thermoelectrics,
are
receiving
striking
attention
for
their
application
foreground
in
high-performing
flexible
thermoelectric
generators.
However,
strategies
to
enhance
performance
while
maintaining
exceptional
plasticity
remain
largely
unexplored.
Here,
we
introduce
a
strategic
vacancy-engineering
approach
address
this
challenge.
Using
computational
design
guide,
carefully
tune
cation
vacancy
concentration
optimize
hole
carrier
concentration,
achieving
impressive
ZTs
~0.62
at
300
K
and
~0.83
343
(AgCu)0.998Te0.8Se0.1S0.1,
ranking
among
highest
class
material.
Importantly,
numerous
diffuse
Ag-S
bonds
combined
with
amorphous
phase
introdeuced
by
engineering
ensure
that
(AgCu)0.998Te0.8Se0.1S0.1
retains
high
having
performance.
A
novel
device,
comprising
ductile
n-type
commercial
Bi2Te3,
achieves
an
power
density
~126
μW
cm−2
under
25
temperature
difference,
demonstrating
significant
prospects
wearable
electronics.
The
authors
report
method
simultaneously
maintain
plasticity,
nearly
10%
strain
three-point
bending
tests
ZT
(AgCu)0.998Te0.8Se0.1S0.1.
ACS Nano,
Год журнала:
2024,
Номер
18(46), С. 31660 - 31712
Опубликована: Ноя. 5, 2024
Defect
engineering
is
an
effective
method
for
tuning
the
performance
of
thermoelectric
materials
and
shows
significant
promise
in
advancing
performance.
Given
rapid
progress
this
research
field,
Review
summarizes
recent
advances
application
defect
materials,
offering
insights
into
how
can
enhance
By
manipulating
micro/nanostructure
chemical
composition
to
introduce
defects
at
various
scales,
physical
impacts
diverse
types
on
band
structure,
carrier
phonon
transport
behaviors,
improvement
mechanical
stability
are
comprehensively
discussed.
These
findings
provide
more
reliable
efficient
solutions
practical
applications
materials.
Additionally,
development
relevant
characterization
techniques
theoretical
models
explored
help
identify
optimal
densities
a
given
material.
Finally,
challenges
faced
conversion
efficiency
highlighted
look
ahead
prospects
strategies
field
presented.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 31, 2025
Abstract
SnTe‐based
thermoelectric
materials
have
attracted
significant
attention
for
their
exceptional
performance
in
mid‐to‐high
temperature
ranges,
positioning
them
as
promising
candidates
power
generation.
However,
efficiency
is
constrained
by
challenges
related
to
electronic
structure,
defect
chemistry,
and
phonon
behavior.
This
review
comprehensively
summarizes
advancements
SnTe
devices
over
the
past
five
years,
focusing
on
strategies
address
these
limitations.
Key
approaches
include
regulation,
carrier
transport
optimization,
engineering
enhance
electrical
conductivity,
reduce
thermal
improve
overall
conversion
efficiency.
The
highlights
breakthroughs
fabrication
methods,
doping
alloying,
composite
designs,
development
of
novel
nanostructures,
with
particular
emphasis
2D
such
monolayers,
bilayers,
thin
films,
which
offer
new
opportunities
enhancement.
Additionally,
it
provides
an
overview
devices,
covering
techniques,
stability,
flexible
device
development.
Despite
progress,
remain
developing
n‐type
materials,
optimizing
interfaces,
ensuring
long‐term
maximizing
fills
gaps
existing
literature
offers
valuable
insights
guidance
future
research
aimed
at
improving
properties,
advancing
integration,
driving
commercial
viability
practical
applications.
The
emerging
integrated
power
supplies
for
self-powered
bioelectronic
devices
over
the
past
few
years
are
summarized.
Additionally,
challenges
and
future
perspectives
in
device
design
manufacturing
also
indicated.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 16, 2025
Abstract
The
unique
structure
of
carbon
nanotubes
(CNTs)
endows
them
with
exceptional
electrical
and
mechanical
properties,
along
a
high
surface
area,
making
highly
beneficial
for
use
as
flexible,
high‐performing
thermoelectric
materials.
As
result,
the
application
CNTs
in
field
has
become
increasingly
widespread.
Considering
rapid
advancements
this
field,
review
offers
timely
overview
most
recent
progress
on
CNT‐based
materials
devices
over
past
five
years.
This
begins
by
introducing
fundamental
concepts
mechanisms
Then
new
strategies
are
explored
to
enhance
their
performance,
focusing
doping
composites,
while
emphasizing
importance
CNT
stability
key
research
area.
Additionally,
latest
design
expanded
scenarios
flexible
wearable
CNTs‐based
summarized.
Finally,
current
challenges
addressed
future
directions
development
discussed.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 14, 2025
Wearable
thermoelectric
devices,
capable
of
converting
body
heat
into
electrical
energy,
provide
the
potential
driving
power
for
Internet
Things,
artificial
intelligence,
and
soft
robotics.
However,
critical
parameters
have
long
been
overlooked
these
practical
applications.
Here,
we
report
a
three-dimensional
flexible
device
with
structure
featuring
an
inner
rigid
outer
woven
design.
Such
includes
numerous
small
static
air
pockets
that
create
stable
out-of-plane
temperature
difference,
enabling
precise
signal
detection
(accuracy
up
to
0.02
K).
Particularly,
this
exhibits
excellent
multi-signal
decoupling
capability,
elasticity
(>10,000
compression
cycles),
ultra-fast
response
(20
ms),
output
under
50%
compressive
strain,
high
breathability
(1300
mm
s−1),
washability.
All
metrics
achieve
highest
values
currently
reported,
fully
meeting
requirements
moisture
exchange,
as
demonstrated
in
our
designed
integrated
smart
mask
glove
systems
based
on
vector
machine
learning
technology.
This
work
shows
has
broad
applicability
wearable
electronics.
devices
are
promising,
though
fabricating
breathable,
sensitive,
washable
challenge.
fabric,
incorporating
layers,
devices.
Intensifying
the
severity
of
electromagnetic
(EM)
pollution
in
environment
represents
a
significant
threat
to
human
health
and
results
considerable
energy
wastage.
Here,
we
provide
strategy
for
electricity
generation
from
heat
generated
by
wave
radiation
captured
surrounding
that
can
reduce
level
while
alleviating
crisis.
We
prepared
porous,
elastomeric,
lightweight
Bi
