Solution
deposition
struggles
to
achieve
conformal
and
pinhole-free
wide-bandgap
(WBG)
perovskite
films
on
micrometer-scale
textured
silicon
subcells
due
challenges
in
nucleation
dynamics
film
uniformity,
necessitating
smaller
textures
the
efficient
perovskite/silicon
tandems,
which
compromise
light
trapping
current
density.
While
evaporation-assisted
two-step
improves
conformality,
it
often
yields
with
suboptimal
crystallinity
a
high
defect
To
address
this,
we
elucidate
formation
mechanism
of
CsPbIxBr3-x
nanocrystals
during
thermal
evaporation
PbI2/CsBr
templates,
can
serve
as
preferential
sites
facilitate
growth
high-quality
films.
By
optimizing
conditions
incorporating
2,3,4,5,6-pentafluorobenzylphosphonic
acid
(pFBPA)
spin-coating
process,
achieved
enhanced
crystallization
kinetics
improved
uniformity.
Further
interface
modification
pFBPA
ethane-1,2-diammonium
iodide
induces
targeted
surface
dipoles
at
both
carrier
transport
layers/perovskite
interfaces,
not
only
offers
better
band
alignment
passivation
interfaces
but
also
creates
an
electric
field
boost
electron
extraction.
These
advancements
enabled
WBG
(1.68
eV)
solar
cell
(PSC)
impressive
power
conversion
efficiency
(PCE)
among
(1.65-1.7
PSCs
based
deposition.
This
study
provides
fundamental
insights
into
achieving
films,
offering
theoretical
foundation
for
development
tandems.
Advanced Materials,
Год журнала:
2024,
Номер
36(37)
Опубликована: Март 1, 2024
Abstract
Perovskite
solar
cells
(PSCs)
have
attracted
widespread
research
and
commercialization
attention
because
of
their
high
power
conversion
efficiency
(PCE)
low
fabrication
cost.
The
long‐term
stability
PSCs
should
satisfy
industrial
requirements
for
photovoltaic
devices.
Inverted
with
a
p‐i‐n
architecture
exhibit
considerable
advantages
excellent
competitive
efficiency.
continuously
broken‐through
PCE
inverted
shows
huge
application
potential.
This
review
summarizes
the
developments
outlines
characteristics
including
charge
transport
layers
(CTLs),
perovskite
compositions,
interfacial
regulation
strategies.
latest
effective
CTLs,
modification,
promotion
strategies
especially
under
light,
thermal,
bias
conditions
are
emphatically
analyzed.
Furthermore,
applications
structure
in
high‐efficiency
stable
tandem,
flexible
devices,
modules
main
obstacles
systematically
introduced.
Finally,
remaining
challenges
faced
by
devices
discussed,
several
directions
advancing
proposed
according
to
development
status
industrialization
requirements.
Advanced Materials,
Год журнала:
2024,
Номер
36(31)
Опубликована: Апрель 11, 2024
Abstract
While
significant
efforts
in
surface
engineering
have
been
devoted
to
the
conversion
process
of
lead
iodide
(PbI
2
)
into
perovskite
and
top
layer
with
remarkable
progress,
exploration
residual
PbI
clusters
hidden
bottom
on
limited.
In
this
work,
a
new
strategy
involving
1‐butyl‐3‐methylimidazolium
acetate
(BMIMAc)
ionic
liquid
(IL)
additives
is
developed
it
found
that
both
cations
anions
ILs
can
interact
components,
thereby
regulating
crystallization
diminishing
residue
as
well
filling
vacancies.
The
introduction
BMIMAc
induces
formation
uniform
porous
film,
facilitating
better
penetration
second‐step
organic
salt
fostering
more
extensive
interaction
between
salt.
Surprisingly,
oversized
at
completely
diminish.
addition,
advanced
depth
analysis
techniques
including
depth‐resolved
grazing‐incidence
wide‐angle
X‐ray
scattering
(GIWAXS)
thinning
technology
are
employed
for
comprehensive
understanding
reduction
.
Leveraging
effective
management
regulation
process,
champion
devices
achieve
power
efficiency
(PCE)
25.06%
long‐term
stability.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(45)
Опубликована: Май 30, 2024
Abstract
Flexible
perovskite
solar
cells
(PSCs)
have
received
great
attention
due
to
their
low
weight,
high
power
ratio,
and
potential
applications
in
wearable
electronic
products.
The
efficiency
stability
of
flexible
PSCs
are
directly
affected
by
the
carrier
extraction
transport
capabilities
electron
layer.
Herein,
efficient
prepared
through
incorporating
2,5‐Furandicarboxylic
acid
(FDCA)
multifunctional
intermediate
layer
between
tin
oxide
(SnO
2
)
perovskite,
which
can
effectively
eliminate
defects
at
interfacial
increase
mobility
SnO
layer,
modify
surface
shift
conduction
band
upward
improve
interface
charge
extraction,
passivate
buried
induce
larger
crystal
growth,
establish
a
bridge
collection
efficiency.
As
result,
rigid
with
FDCA
display
champion
conversion
(PCE)
24.53%
open
circuit
voltage
(
V
OC
1.204
V.
Furthermore,
device
achieves
PCE
22.10%,
preserve
90%
its
initial
after
aging
for
500
h
ambient
condition
without
encapsulation,
maintain
81%
original
10,000
bending
cycles.
Advanced Materials Technologies,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 20, 2025
Abstract
The
urgency
for
a
sustainable
mitigation
of
the
environmental
impacts
caused
by
climate
change
highlights
importance
renewable
energy
technologies
to
fight
this
challenge.
Perovskite
solar
cells
(PSCs)
emerge
as
promising
alternative
traditional
photovoltaic
(PV)
due
their
unprecedented
increase
in
efficiency
(currently
peaking
at
26.95%)
and
long‐term
stability
proven
successful
completion
industry
relevant
International
Electrotechnical
Commission
(IEC)
testing
standards.
Flexible
PSCs
(f‐PSCs)
offer
significant
advantages
such
lightweight
high
power‐per‐weight
ratio,
mechanical
flexibility,
throughput
roll‐to‐roll
(R2R)
manufacturing.
These
make
f‐PSCs
ideal
implementation
various
applications
areas,
wearable
electronics,
portable
devices,
space
PV,
building‐
or
automotive‐integrated
PVs,
more.
Notably,
efficiencies
over
23%
now
mark
milestone
f‐PSCs,
demonstrating
competitiveness
with
rigid
panels.
This
review
explores
breakthroughs
focusing
on
flexible
substrates,
electrode
materials,
perovskite
inks,
encapsulation
strategies.
It
also
covers
recent
advancements
studies
fabricated
scalable
deposition
methods
emphasizes
interfacial
engineering
enhancing
durability.
concludes
summary
key
findings,
remaining
challenges,
perspectives
market
uptake
f‐PSCs.
Flexible
perovskite
solar
cells
(FPSCs),
featured
with
lightweight,
high
efficiency,
and
low
cost,
have
attracted
much
attention
anticipating
in
applications
on
wearable
electronics,
near‐space
vehicles,
internet
of
things.
High
efficiency
mechanical
stability
are
two
main
factors
the
study
FPSCs
toward
practical
applications.
In
recent
few
years,
many
breakthroughs
materials
modification
device
innovation
make
power
conversion
reach
over
25%.
A
comprehensive
review
thus
is
conducted
to
elucidate
critical
issues
including
flexible
substrates,
transparent
electrodes,
charge
transport
layers,
films,
modifications
for
enhancement
FPSCs,
which
expected
promote
future
development
FPSCs.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(26)
Опубликована: Апрель 23, 2024
The
inefficient
conversion
of
lead
iodide
to
perovskite
has
become
one
the
major
challenges
in
further
improving
performance
solar
cells
fabricated
by
two-step
method.
Herein,
discontinuous
layer
realized
introduction
a
polyfluorinated
organic
diammonium
salt,
octafluoro-([1,1'-biphenyl]-4,4'-diyl)-dimethanaminium
(OFPP)
which
does
not
form
low-dimensional
perovskites,
can
enable
satisfactory
into
perovskite,
leading
meliorated
crystallinity
and
enlarged
grains
OFPP
modulated
(OFPP-PVK)
film.
Combined
with
effective
defect
passivation,
OFPP-PVK
films
show
enhanced
charge
mobility
suppressed
recombination.
Accordingly,
OFPP-based
exhibit
champion
efficiency
24.76
%
better
device
stability.
Moreover,
superior
21.04
was
achieved
large-area
module
(100
cm
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(20), С. 7829 - 7837
Опубликована: Янв. 1, 2024
An
insight
of
anion-exchange
strategy
gained
by
in
situ
characterization
sequential
thermal
evaporation-solution
process
for
high
quality
perovskite
films.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 31, 2025
Abstract
Surface
modification
of
perovskite
films
by
conventional
chemical
additives
suffers
from
the
complexity
process
and
risk
secondary
contamination,
which
limits
open‐circuit
voltage
(
V
OC
)
solar
cells
(PSCs).
The
utilization
clean‐passivate
strategy
for
polishing
has
garnered
considerable
attention
in
recent
years.
Nevertheless,
this
method
necessitates
incorporation
does
not
ensure
their
complete
removal,
may
potentially
compromise
stability
devices.
Here,
a
simple
additive‐free
situ
surface
(ISSP)
is
proposed
to
reconstruct
mitigate
loss.
ISSP
treatment,
based
on
green
agent
1,1,1,3,3,3‐hexafluoropropan‐2‐ol
(HFIP),
demonstrated
its
effectiveness
reducing
defects,
optimizing
energy
level
alignment,
improving
interfacial
contacts.
ISSP‐treated
PSCs
exhibit
minimal
loss
0.35
V,
approaching
95%
theoretical
limit.
As
result,
high
power
conversion
efficiency
(PCE)
stability,
with
PCE
24.13%
maintaining
91.1%
initial
after
over
2,500
h
N
2
storage
(ISOS‐D‐1).
Furthermore,
treatment
applicable
flexible
(FPSCs)
obtain
both
mechanical
robustness.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Abstract
The
two‐step
method
for
perovskite
solar
cells
(PSCs)
offers
a
promising
technology
scalable
manufacturing,
particularly
under
ambient
air
conditions,
due
to
its
inherent
simplicity,
high
reproducibility,
and
operational
convenience.
With
this
approach,
achieving
high‐quality
of
lead
iodide
(PbI
2
)
films
during
the
initial
stage
is
paramount
ensuring
overall
performance
stability
devices.
However,
fabrication
PbI
,
residual
boiling
point
hygroscopic
dimethyl
sulfoxide
(DMSO)
solvent
significantly
compromises
resulting
film
quality.
Here,
L‐Homoarginine
hydrochloride
(HargCl)
introduced
into
precursor
solution,
which
greatly
reduced
amount
·xDMSO
passivated
internal
defects
(PVK)
films.
By
leveraging
strategy,
inverted
entirely
in
are
successfully
prepared,
an
impressive
power
conversion
efficiency
(PCE)
25.05%
—
highest
reported
date
fully
air‐processed
PSCs.
In
addition,
these
unencapsulated
devices
maintained
96%
their
after
500
h
storage
with
20–40%
RH.
