ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
8(1), P. 421 - 429
Published: Dec. 31, 2024
The
emergence
of
CsPbBr3
perovskite
solar
cells
(PSCs)
with
a
band
gap
approximately
2.3
eV
has
generated
increasing
interest
stemming
from
their
potential
for
high
open-circuit
voltage
(Voc),
making
them
particularly
suitable
use
in
tandem
configurations
or
spectral
splitting.
However,
the
Voc
PSCs
currently
falls
short
its
theoretical
limit,
driven
by
trap-mediated
charge
recombination
and
energy
alignment
mismatch.
In
this
study,
we
present
straightforward
additive
engineering
approach
involving
introduction
PbI2
species
into
PbBr2
precursor
film
to
form
I–Pb–Br
interaction,
retarding
rapid
reaction
between
CsBr.
This
effectively
suppresses
Pb-rich
phase
CsPb2Br5,
eliminates
pinholes
on
crystal,
obtains
high-quality
films,
which
can
significantly
enhance
photovoltaic
properties.
Consequently,
achieved
films
characterized
enlarged
crystal
size,
complete
coverage,
purity,
without
pinhole
presence,
leading
best-performed
efficiency
10.35%
higher
up
1.580
V
compared
power
conversion
(PCE)
8.35%
1.442
control
device,
along
exceptional
operational
stability.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Abstract
Recent
advances
in
wide‐bandgap
(WBG)
perovskite
solar
cells
(PSCs)
demonstrate
a
burgeoning
potential
to
significantly
enhance
photovoltaic
efficiencies
beyond
the
Shockley–Queisser
limit
for
single‐junction
cells.
This
review
explores
multifaceted
improvements
WBG
PSCs,
focusing
on
novel
compositions,
halide
substitution
strategies,
and
innovative
device
architectures.
The
of
iodine
with
bromine
organic
ions
such
as
FA
MA
Cs
lattice
is
emphasized
its
effectiveness
achieving
higher
open‐circuit
voltages
reduced
thermalization
losses.
Furthermore,
integration
advanced
charge
transport
layers
interface
engineering
techniques
discussed
critical
minimizing
voltage
(
V
OC
)
deficits
improving
photo‐stability
these
utilization
PSCs
diverse
applications
semitransparent
devices,
indoor
photovoltaics,
multijunction
tandem
devices
also
explored,
addressing
both
their
current
limitations
solutions.
culminates
comprehensive
assessment
challenges
impeding
industrial
scale‐up
PSC
technology
offers
perspective
future
research
directions
aimed
at
realizing
highly
efficient
stable
commercial
applications.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
Tandem
solar
cells
(TSCs)
based
on
wide
bandgap
(WBG)
perovskites
have
gained
significant
attention
for
their
higher
power
conversion
efficiency
(PCE)
compared
to
single‐junction
cells.
The
role
of
WBG
perovskite
(PSCs)
as
the
sub‐cell
in
tandem
consists
absorbing
high‐energy
photons
and
producing
open‐circuit
voltages
(
V
OC
).
However,
PSCs
face
serious
phase
separation
issues,
resulting
poor
long‐term
stability
substantial
loss
TSCs.
In
response,
researchers
developed
a
range
strategies
mitigate
these
challenges,
showing
promising
progress,
comprehensive
review
is
expected.
this
review,
we
discuss
mechanism
organic–inorganic
hybrids
all‐inorganic
perovskites.
Additionally,
conduct
an
in‐depth
investigation
various
enhance
stability,
including
component
engineering,
additive
interface
dimension
control,
solvent
encapsulation.
Furthermore,
application
TSCs
summarized
detail.
Finally,
perspectives
are
provided
offer
guidance
development
efficient
stable
field
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 1, 2024
Abstract
Wide‐bandgap
(WBG)
(
E
g
≥
1.65
eV)
perovskite
solar
cells
(PSCs)
made
from
mixed‐halide
strategy
experience
severe
photo‐induced
halide
segregation,
leading
to
detrimental
effects
on
the
long‐term
operational
stability.
Developing
single‐halogen
WBG
perovskites
can
be
fundamental
solution
prevent
segregation.
In
this
review,
recent
advances
in
PSCs,
focusing
cesium
(Cs)‐based
pure‐iodide
(I)
and
all
pure‐bromine
(Br)
species
is
summarized.
A
detailed
discussion
conducted
crystallization
dynamics
of
different
systems.
The
key
challenge
for
PSCs
huge
energy
loss
due
inferior
interfacial
level
alignment
high
defect
density
films,
which
greatly
hinders
efficiency
improvement.
To
end,
it
systematically
discuss
optimization
strategies,
including
regulating
crystallization,
passivating
defects,
achieving
aligned
levels,
eliminating
microstrain,
enhance
photovoltaic
performance
cells.
Furthermore,
highlighted
that
Cs‐based
pure‐I
encounter
significant
stability
issue
their
low
structural
tolerance
factor,
warranting
substantial
attention.
Finally,
perspectives
are
outlined
suggest
ways
further
advance
development
application
PSCs.
Solar RRL,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 9, 2025
Wide‐bandgap
(WBG)
perovskite
films
are
vital
for
advancing
high‐efficiency
silicon/perovskite
tandem
technology.
However,
the
performance
of
WBG
produced
using
vapor
deposition
techniques
often
lags
behind
that
solution‐based
methods
due
to
challenges
in
accurately
controlling
halide
ions
and
crystallization
quality,
particularly
Br/I
ratio
vapor‐deposited
films.
In
this
study,
we
investigated
ion
exchange
(IE)
process
vapor‐solid
reaction
developed
two
producing
CsFAPbI
x
Br
3−
thin
films:
one
involved
reacting
3
FABr
(I‐based
IE
perovskite),
while
other
used
CsFAPbBr
FAI
(Br‐based
perovskite).
Our
findings
demonstrate
Br‐based
exhibits
superior
quality
lower
defect
density
throughout
process.
As
a
result,
approach
has
facilitated
development
solar
cells
with
maximum
power
conversion
efficiency
19.51%.
Additionally,
unencapsulated
devices
were
able
retain
88.9%
their
initial
after
being
stored
1500
hr
under
atmospheric
conditions
(25°C,
18
±
5%
RH).
This
research
provides
novel
strategy
methodology
fabricating
high‐performance
cell
via
vapor‐based
techniques,
which
is
crucial
industrialization
both
cells.
Solar RRL,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 5, 2025
The
typical
anisotropic
crystal
orientation
in
Ruddlesden–Popper
perovskites
(RPPs)
is
not
conducive
to
carrier
transport,
resulting
a
reduced
power
conversion
efficiency
(PCE)
compared
three‐dimensional
perovskites.
Here,
we
present
novel
method
for
manipulating
the
by
introducing
self‐assembled
molecular
layer,
MeO‐2PACz
([2‐(3,6‐dimethoxy‐9H‐carbazol‐9‐yl)ethyl]
phosphonic
acid),
as
an
interlayer
between
PTAA
(poly[bis(4‐phenyl)(2,4,
6‐trimethylphenyl)
amine])
and
perovskite.
phosphate
group
of
bonds
with
Pb
2+
RPP,
promoting
vertical
formation
perovskite
facilitating
efficient
charge
transport
within
RPP
materials.
Additionally,
grain
size
increased,
boundary
defects
are
passivated,
which
contributes
suppressed
nonradiative
recombination
carriers.
incorporation
significantly
improves
PCE
optimized
device
17.80%,
without
MeO‐2PACz,
has
approximately
15.68%.
This
presents
highest
MA‐based
RP
solar
cell
(PSC)
utilizing
4FPEA
(4‐fluoro‐phenethylammonium)
spacer
cation.
Furthermore,
unencapsulated
devices
demonstrate
superior
thermal
stability.
proposed
optimization
offers
new
insights
into
manipulation
growth
orientation.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 11, 2025
Abstract
Wide
bandgap
(WBG)
metal
halide
perovskite
solar
cells
with
high
output
voltages
are
critical
for
efficiency
multi‐junction
cells.
This
work
demonstrates
the
first
use
of
laser
annealing
in
ambient
fabricating
both
self‐assembly
molecular
(SAM)
hole
transport
layer
(HTL)
and
1.80
eV
impressive
open
circuit
voltage
(
V
OC
)
power
conversion
(PCE).
The
1.35V
PCE
19.8%
produced
by
champion
cell
highest‐to‐date
same
bandgap.
Notably,
reduces
processing
time
to
only
1
min
each
HTL
compared
10
hot‐plate
thermal
device
area.
Additionally,
subjects
substrate
lower
temperature
than
annealing.
Macroscopic
localized
profiles
generated
were
modeled
a
3D
finite
element
analysis
unveiling
effective
absorption
cooling
film
Me‐4PACz
heat
rest
during
scanning.
promising
prospects
future
mass
production
especially
on
temperature‐sensitive
substrates.
Communications Chemistry,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: April 14, 2025
Abstract
Self-healing
is
a
fundamental
ability
inherent
in
humans,
plants,
and
other
living
organisms.
To
date,
variety
of
materials
with
self-healing
properties
have
been
developed.
However,
these
usually
require
external
inputs
such
as
electric
potentials
or
healing
agents
to
initiate
promote
reactions.
Herein,
we
present
novel
mechanism
that
operates
without
any
input,
utilizing
the
dynamic
equilibrium
between
solid-state
dissolved
materials.
We
employed
organic–inorganic
perovskites
validate
our
strategy.
Single-particle
spectroscopy
imaging
demonstrated
spontaneous
after
photodamage
under
conditions.
Furthermore,
found
can
generate
hydrogen
both
healed
damaged
states.
Remarkably,
exhibited
generation
over
four
cycles
self-healing.
The
proposed
concept
experimental
results
provide
valuable
insights
for
development
energy
conversion
storage
systems
improved
long-term
durability.
