Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Chiral
molecules
have
shown
potential
in
passivating
perovskite
solar-cell
interfaces
and
boosting
charge
transport
drawn
significant
research
interest.
However,
the
specific
passivation
mechanisms
of
different
chiral
structures
on
films
their
photoelectric
effects
require
further
investigation.
In
this
study,
R-,
S-,
rac-methylbenzylammonium
chloride
(MBACl)
are
used
to
address
interface
defects.
S-MBACl
exhibits
strongest
chelation
effects.
Kelvin
probe
force
microscopy
results
show
that
increases
surface
differences
between
dark
illuminated
states
by
227%,
from
39.67
129.91
mV,
enhances
electron-hole
separation.
Consequently,
power
conversion
efficiency
(PCE)
S-MBACl-modified
devices
is
24.07%,
which
109%
times
pure
sample.
The
PCE
unencapsulated
solar
cells
remains
at
89%
initial
value
after
aging
25
°C
for
2400
h
N2
atmosphere.
This
study
provides
valuable
insights
future
studies
molecules.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Abstract
Self‐assembled
monolayers
(SAMs)
as
hole‐collecting
materials
have
made
remarkable
progress
in
inverted
perovskite
solar
cells
(PSCs).
However,
the
incomplete
coverage
of
SAMs
and
non‐intimate
interface
contact
between
perovskite/SAMs
usually
cause
inferior
characteristics
significant
energy
losses
at
heterojunction
interface.
Herein,
a
post‐assembled
chelating
molecular
bridge
strategy
using
5‐(9H‐carbazol‐9‐yl)isophthalicacid
(CB‐PA)
is
developed
to
modify
buried
It
found
that
CB‐PA
can
be
chemically
coupled
with
MeO‐2PACz
through
π–π
stacking
carbazole
groups,
chelate
by
forming
double
C═O···Pb
bonds,
thus
constructing
bridge‐connected
promote
carrier
extraction.
Simultaneously,
fill
voids
form
dense
hybrid
SAMs,
resulting
uniform
surface
potential
improved
contact.
Moreover,
treatment
also
tends
induce
oriented
crystallization
films,
passivate
defects,
release
lattice
stress
Consequently,
CB‐PA‐based
PSCs
achieve
champion
efficiency
25.27%
superior
operational
stability,
retaining
≈94%
their
initial
after
maximum
power
point
(MPP)
tracking
(65
°C)
for
1000
h
ISOS‐L‐2I
protocol.
This
work
provides
an
innovative
address
challenges
high‐performance
PSCs.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 9, 2025
Developing
strategies
to
manage
ion-migration-induced
phase
segregation
in
wide-bandgap
(WBG)
perovskites
is
crucial
for
achieving
high-performance
perovskite-silicon
tandem
solar
cells
(TSCs).
However,
maintaining
continuous
suppression
of
from
the
film
crystallization
process
device
operation
remains
a
significant
challenge.
The
present
study
demonstrates
an
efficient
strategy
activating
halogen
circulation
WBG
perovskite
by
using
agents
(HCA)
N-halosuccinimide
molecules
as
sustainable
stabilizers,
order
achieve
dynamic
equilibrium
within
precursor
solution
and
film,
which
blocks
migration
path
Br-/I-
ions
both
aging
perovskites.
Attempts
on
situ
monitoring
halide
visually
verified
enhanced
stability
activated
films
devices.
Consequently,
work
achieves
champion
efficiency
up
23.25%
with
low
Voc
loss
0.39
V
1.67-eV-bandgap
device,
HCA-based
devices
can
maintain
88%
93%
their
initial
efficiencies
over
1000
h
under
illumination
2500
at
85
°C
N2
atmosphere,
respectively.
As
proof
concept,
perovskite/silicon
monolithic
TSCs
are
fabricated
demonstrate
high
1.99
power
conversion
33.2%.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 25, 2025
Abstract
Microscale
imperfections
and
inhomogeneity
at
buried
interface
leads
to
energy
losses
insufficient
carrier
extraction
of
wide
bandgap
(WBG)
perovskite
solar
cells
(PSCs).
Here,
we
report
a
collaborative
strategy
by
introducing
3‐aminopropanoic
acid
(3‐APA)
mix
with
[4‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)butyl]phosphonic
(Me‐4PACz)
as
hole‐selective
self‐assembled
monolayer
(SAM).
With
the
addition
3‐APA,
wettability
precursors
is
increased.
Furthermore,
film
morphology
heterogeneity
improved.
As
result,
nonradiative
recombination
interfacial
loss
are
greatly
suppressed.
This
also
marginally
higher
ionization
potential
monolayers,
approximating
valence
band
film.
Benefits
from
suppressed
charge
transfer
loss,
mixed
SAM
present
overcome
passivation
transport
trade‐off,
delivering
V
OC
×
FF
84.5%
S–Q
limit.
The
combine
benefits
enable
efficient
1.67
eV
WBG
PSCs
power
conversion
efficiency
22.4%
high
open
circuit
voltage
1.255
fill
factor
85.5%.
Under
strategy,
demonstrat
all‐perovskite
tandem
28.4%.
The
power-conversion
efficiency
(PCE)
of
perovskite
solar
cells
(PSCs)
has
exceeded
in
2024
the
theoretical
single-junction
Shockley-Queisser
limit
33.7%
with
perovskite/silicon
tandem
version.
commercialization
technology
is
now
a
reality
PV
industry
demonstrating
its
first
commercial
products.
Many
companies
have
shown
excellent
module
reliability
most
them
passing
IEC
standardization
(required
for
silicon
cells).
In
this
article,
we
want
to
bring
some
light
on
intriguing
question
regarding
stability
and
PSC
technology:
Are
there
yet?
Issues
are
still
under
strong
investigation
research
topic
increased
exponentially
last
10
years.
Since
already
promised
their
modules,
80%
retention
initial
PCE
after
25
years,
following
two
or
three
years
will
be
crucial
demonstrate
these
pledges.
work,
present
an
outline
stable
devices
reported
date
discuss
important
strategies
leading
highly
devices.
online
version
contains
supplementary
material
available
at
10.1557/s43577-025-00863-5.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 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
Abstract
Semi‐transparent
perovskite
solar
cells
(STPSCs)
have
shown
great
potential
in
Building
Integrated
Photovoltaics
(BIPVs).
Inverted
STPSCs
with
nickel
oxide
(NiO
x
)
hole
transport
layer
are
preferred
for
BIPVs
due
to
their
excellent
stability
and
transparency.
However,
performance
is
limited
poor
NiO
/perovskite
interface
leading
non‐radiative
recombination
degradation.
Here,
the
study
uses
different
fluorinated
benzoic
acids
viz.
4‐fluorobenzoic
acid,
3,4‐di‐fluorobenzoic
3,4,5‐tri‐fluorobenzoic
improve
effect
of
fluorine
substitution
on
acid.
Chemical
interaction
between
these
molecules
can
remove
hydroxyl
groups
from
surface,
mitigating
defect
states
which
results
reduced
recombination.
modified
acid
demonstrate
a
champion
power
conversion
efficiency
(PCE)
15.12%
an
average
visible
transmittance
(AVT)
≈30%.
Modified
unencapsulated
device
maintains
90%
its
initial
PCE
after
1500
hours,
stored
30–35%
humidity,
demonstrating
superior
stability.
This
emphasizes
role
buried
interfacial
passivation
development
building
facades,
windows,
or
skylights.
