ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(43), P. 58912 - 58919
Published: Oct. 21, 2024
The
argyrodite
family
has
emerged
as
a
promising
thermoelectric
candidate
due
to
its
highly
diffusive
Ag
ions
and
inherent
low
thermal
conductivity.
To
address
issues
that
commonly
arise
with
hot
pressing
(HP)
sintering,
this
study
proposes
use
the
zone
melting
(ZM)
method
synthesize
high-density
polycrystalline
bulk
Ag8SnSe6
samples.
properties
of
samples
synthesized
by
ZM
HP
methods
were
thoroughly
evaluated
over
temperature
range
300
700
K.
Due
weaker
scattering
electrons,
ZM-synthesized
exhibited
an
∼60%
increase
in
weighted
mobility,
compared
those
produced
method.
Despite
slight
conductivity,
specimen
achieves
higher
peak
zT
value
1.05
at
average
also
improves
0.71
across
This
work
demonstrates
effectiveness
enhancing
performance
Ag8SnSe6,
great
potential
applicability
other
compounds.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(46), P. 31660 - 31712
Published: Nov. 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,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 30, 2024
Defect
structure
is
pivotal
in
advancing
thermoelectric
performance
with
interstitials
being
widely
recognized
for
their
remarkable
roles
optimizing
both
phonon
and
electron
transport
properties.
Diverse
interstitial
atoms
are
identified
previous
works
according
to
distinct
can
be
classified
into
rattling
interstitial,
decoupling
interlayer
dynamic
liquid
interstitial.
Specifically,
cause
resonance
cage
compound
scatter
transport;
contribute
blocking
due
significantly
different
mean
free
paths;
facilitate
out-of-layer
layered
compounds;
tune
temperature-dependent
carrier
density
optimize
electrical
properties
at
wide
temperatures;
could
improve
the
mobility
homogeneous
dispersion
state.
All
of
these
have
positive
impact
on
by
adjusting
parameters.
This
perspective
therefore
intends
provide
a
thorough
overview
advances
strategy
highlight
significance
Finally,
profound
potential
extending
various
other
systems
discussed
some
future
directions
material
also
outlined.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
Bismuth
telluride
(Bi
2
Te
3
)
has
been
the
only
commercialized
material
in
thermoelectric
cooling
and
waste
heat
recovery.
However,
inferior
performance
for
n‐type
Bi
(Te,
Se)
largely
restricts
practical
applications.
In
this
study,
additional
Ag
atoms
are
introduced
utilizing
lattice
plainification
strategy
to
enhance
electrical
performance.
Observations
indicate
that
situate
van
der
Waals
layers,
acting
as
dopants
increase
carrier
concentration,
bonding
with
adjacent
intercalating
form
electron
transport
channels,
while
also
suppressing
formation
of
vacancies
boost
mobility,
substantially
favoring
transport.
Consequently,
2.79
Se
0.21
I
0.004
+0.3%Ag
achieves
an
excellent
room‐temperature
ZT
≈1.1,
Te2
.79
+
0.4%Ag
demonstrates
a
higher
average
≈1.1
at
300–523
K.
Furthermore,
full‐scale
cooler
using
optimized
combined
commercial
p‐type
0.5
Sb
1.5
achieved
maximum
temperature
difference
(Δ
T
max
≈68.3
K
300
larger
Δ
≈84.8
343
Additionally,
0.4%Ag/Bi
‐based
power
generator
realizes
conversion
efficiency
≈6.0%
under
≈240
These
results
outperform
devices,
illustrating
effectiveness
thermoelectrics.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 24, 2025
Abstract
N‐type
Bi
2
Te
2.7
Se
0.3
(BTS)
is
a
state‐of‐the‐art
thermoelectric
material
owing
to
its
excellent
properties
near
room
temperatures
for
commercial
applications.
However,
performance
restricted
by
comparatively
low
figure
of
merit
ZT
.
Here,
it
shown
that
14%
increase
in
power
factor
(PF)
(at
300
K)
can
be
reached
through
incorporation
inorganic
GaAs
nanoparticles
due
enhanced
thermopower
originating
from
the
energy‐dependent
carrier
scattering.
Besides,
further
organic
nanophase
PEDOT:
PSS
reduce
lattice
thermal
conductivity
59%
strong
scattering
middle‐
and
low‐frequency
phonons.
As
result,
peak
value
max
≈
1.31
373
an
average
ave
1.10
(300–473
are
achieved
BTS/(0.4
wt.%
+
0.5
PSS)
sample.
The
present
work
demonstrates
organic–inorganic
effective
way
improve
BTS.
National Science Review,
Journal Year:
2024,
Volume and Issue:
12(2)
Published: Dec. 6, 2024
Thermoelectrics
can
mutually
convert
between
thermal
and
electrical
energy,
ensuring
its
utilization
in
both
power
generation
solid-state
cooling.
Bi2Te3
exhibits
promising
room-temperature
performance,
making
it
the
sole
commercially
available
thermoelectrics
to
date.
Guided
by
lattice
plainification
strategy,
we
introduce
trace
amounts
of
Cu
into
n-type
Bi2(Te,
Se)3
(BTS)
occupy
Bi
vacancies,
thereby
simultaneously
weakening
defect
scattering
modulating
electronic
bands.
Meanwhile,
interstitial
bond
with
BTS
matrix
form
extra
electron
transport
pathways.
The
multiple
occupations
substantially
boost
carrier
mobility
performance.
Consequently,
+
0.2%Cu
achieves
a
ZT
∼1.3
an
average
ave
∼1.2
at
300-523
K.
Moreover,
kilogram-scale
ingot
designed
for
mass
production
also
high
uniformity.
Finally,
fabricate
full-scale
device
that
excellent
conversion
efficiency
∼6.4%
cooling
ΔT
max
∼70.1
K,
which
outperform
commercial
devices.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 11, 2024
Abstract
Thermoelectrics
(TEs),
enabling
the
direct
conversion
between
heat
and
electrical
energy,
have
demonstrated
extensive
application
potential
in
biomedical
fields.
Herein,
mechanism
of
TE
effect,
recent
developments
materials,
biocompatibility
assessment
materials
are
provided.
In
addition
to
fundamentals
TEs,
a
timely
comprehensive
review
progress
advanced
their
applications
is
presented,
including
wearable
power
generation,
personal
thermal
management,
biosensing.
addition,
new‐emerged
medical
wound
healing,
disease
treatment,
antimicrobial
therapy,
anti‐cancer
therapy
thoroughly
reviewed.
Finally,
main
challenges
future
possibilities
outlined
for
TEs
fields,
as
well
material
selection
criteria
specific
scenarios.
Together,
these
advancements
can
provide
innovative
insights
into
development
broader
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
state-of-the-art
works
on
developing
organic
materials
with
high
electrical
conductivity
and
power
factor
to
improve
the
output
density
of
thermoelectric
generator
are
summarized
in
this
review.
Materials,
Journal Year:
2025,
Volume and Issue:
18(3), P. 656 - 656
Published: Feb. 2, 2025
The
objective
of
our
research
is
to
improve
the
power
generation
a
thermoelectric
generator
(TEG)
using
single-walled
carbon
nanotube
(SWCNT)
sheet
by
applying
out-of-plane
deformation
slitted
kirigami
structure.
In
order
obtain
large
amount
from
TEG
thin-film
(TE)
element
such
as
SWCNT
sheet,
it
necessary
generate
temperature
difference
in
in-plane
direction
TE
element.
However,
difficult
realize
when
contact
with
heat
source
due
need
for
layer
high
insulation.
this
research,
we
proposed
and
fabricated
structure
slits
p-n
patterned
material
evaluated
open
circuit
voltage
respect
number
elements.
As
result,
output
performance
was
clarified
pairs
were
varied.
