ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(11), P. 5190 - 5198
Published: Oct. 23, 2024
Narrow-bandgap
(NBG)
perovskite
solar
cells
based
on
tin–lead
mixed
absorbers
suffer
from
significant
open-circuit
voltage
(VOC)
losses
due
primarily
to
a
high
defect
density
and
charge
carrier
recombination
at
the
device
interfaces.
In
this
study,
VOC
in
NBG
single
junction
(Eg
=
1.21
eV)
are
addressed.
The
optimized
subcell
is
then
used
fabricate
highly
efficient
all-perovskite
tandem
(TSCs).
improvement
achieved
via
addition
of
thin
poly(triarylamine)
interlayer
between
poly(3,4-ethylenedioxythiophene)
poly(styrenesulfonate)
(PEDOT:PSS)-based
hole
transport
layer
(HTL)
perovskite.
optimal
bilayer
HTL
results
champion
power
conversion
efficiency
(PCE)
20.3%,
compared
17.8%
PEDOT:PSS-based
control
device.
single-junction
cell
also
successfully
transferred
TSC,
resulting
2.00
V
PCE
25.1%.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 2, 2025
All-perovskite
tandem
photovoltaics
are
a
potentially
cost-effective
technology
to
power
chemical
fuel
production,
such
as
green
hydrogen.
However,
their
application
is
limited
by
deficits
in
open-circuit
voltage
and,
more
challengingly,
poor
operational
stability
of
the
photovoltaic
cell.
Here
we
report
laboratory-scale
solar-assisted
water-splitting
system
using
an
electrochemical
flow
cell
and
all-perovskite
solar
We
begin
treating
perovskite
surface
with
propane-1,3-diammonium
iodide
solution
that
reduces
interface
non-radiative
recombination
losses
achieves
above
90%
detailed-balance
limit
for
single-junction
cells
between
bandgap
1.6–1.8
eV.
Specifically,
high
1.35
V
maximum
conversion
efficiency
19.9%
achieved
at
1.77
eV
bandgap.
This
enables
monolithic
26.0%
1
cm2
area
pioneering
photovoltaic-electrochemical
solar-to-hydrogen
17.8%.
The
retains
over
60%
its
peak
performance
after
operating
than
180
h.
find
loss
mainly
due
degradation
component.
observe
severe
charge
collection
narrow-bandgap
sub-cell
can
be
attributed
hole-transporting
layer.
Our
study
suggests
developing
chemically
stable
absorbers
contact
layers
critical
applications
photovoltaics.
Here,
authors
achieve
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(22), P. 8557 - 8569
Published: Jan. 1, 2024
This
study
showed
PEHCl-CN
can
enhance
the
strength
of
Sn–I,
resulting
in
good
light
stability.
The
subsequent
doping
MBI
resulted
air
enables
integrated
2T
all-perovskite
device
to
achieve
an
efficiency
27.9%.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Abstract
Formamidinium
(FA)‐based
Sn‐Pb
perovskite
demonstrates
superior
thermal
stability,
making
it
well‐suited
for
all‐perovskite
tandem
solar
cells.
However,
the
uncontrolled
crystallization
process
remains
a
significant
challenge.
In
this
study,
an
effective
strategy
is
presented
to
regulate
of
FA‐based
by
incorporating
perfluoroanionic
surfactant
(perfluorohexanesulfonic
acid
potassium
salt,
F
13
C
6
SO
3
K)
into
precursor.
The
multifunctional
sites
K,
including
atoms
and
−
groups,
interact
with
components
stabilize
colloidal
distribution
precursor
modulate
kinetics.
This
results
in
high‐quality
films
fewer
defects.
Consequently,
cell
(PSC)
achieves
champion
efficiency
24.33%,
open‐circuit
voltage
0.895
V
fill
factor
83.2%.
After
continuous
heating
at
65
°C
1008
h,
still
maintain
91%
its
initial
efficiency,
which
shows
enhanced
stability.
When
coupled
wide‐bandgap
subcell,
reaches
power
conversion
(PCE)
27.57%.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Feb. 26, 2025
Abstract
In
this
theoretical
analysis,
the
pressure-dependent
structural,
electronic,
mechanical,
and
optoelectronic
properties
of
LiMCl
3
(M
=
Mg,
Be)
have
been
calculated
using
density
functional
theory
within
framework
GGA
PBE
hybrid
HSE06
functional.
At
ambient
pressure,
lattice
parameters
match
well
with
previously
reported
values,
validating
accuracy
study.
Geometry
optimization
reveals
that
under
increasing
hydrostatic
both
unit
cell
volume
decrease.
Additionally,
band
structure
exhibits
notable
phenomena
over
pressure
range
from
0
to
100
GPa.
For
LiMgCl
compound,
bandgap
decreases
an
indirect
4
eV
a
direct
2.563
eV.
Similarly,
LiBeCl
shows
2.388
0.096
The
optical
,
including
absorption
coefficient,
reflectivity,
refractive
index,
dielectric
function,
conductivity,
throughout
study
varying
conditions.
analysis
Be,
Mg)
enhance
thereby
rendering
these
materials
more
suitable
for
applications.
To
assess
stability
compounds,
elastic
constants
were
analyzed,
indicating
ductile
anisotropic
characteristics
different
These
investigated
are
use
in
devices
due
their
favorable
physical
circumstances.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 26, 2024
Abstract
This
5th
annual
“
Emerging
PV
Report”
highlights
the
latest
advancements
in
performance
of
emerging
photovoltaic
(e‐PV)
devices
across
various
e‐PV
research
areas,
as
documented
peer‐reviewed
articles
published
since
August
2023.
Updated
graphs,
tables,
and
analyses
are
provided,
showcasing
several
key
parameters,
including
power
conversion
efficiency,
open‐circuit
voltage,
short‐circuit
current,
fill
factor,
light
utilization
stability
test
energy
yield.
These
parameters
presented
functions
bandgap
average
visible
transmittance
for
each
technology
application
contextualized
using
benchmarks
such
detailed
balance
efficiency
limit.
