Abstract
The
unfavorable
morphology
and
high
crystallization
temperature
(
T
c
)
of
inorganic
perovskites
pose
a
significant
challenge
to
their
widespread
application
in
photovoltaics.
In
this
study,
an
effective
approach
is
proposed
enhance
the
cesium
lead
triiodide
(CsPbI
3
while
lowering
its
.
By
introducing
dimethylammonium
acetate
into
perovskite
precursor
solution,
rapid
nucleation
stage
facilitated,
significantly
enhances
crystal
growth
intermediate
phase
at
low
annealing
temperatures,
followed
by
slow
higher
temperatures.
This
results
uniform
dense
CsPbI
films
with
enhanced
crystallinity,
simultaneously
reducing
from
200
150
°C.
Applying
positive‐intrinsic‐negative
(p‐i‐n)
inverted
cells
yields
power
conversion
efficiency
19.23%.
Importantly,
these
exhibit
stability,
even
under
stress
85
Light Science & Applications,
Год журнала:
2024,
Номер
13(1)
Опубликована: Сен. 3, 2024
Abstract
In
just
over
a
decade,
certified
single-junction
perovskite
solar
cells
(PSCs)
boast
an
impressive
power
conversion
efficiency
(PCE)
of
26.1%.
Such
outstanding
performance
makes
it
highly
viable
for
further
development.
Here,
we
have
meticulously
outlined
challenges
that
arose
during
the
industrialization
PSCs
and
proposed
their
corresponding
solutions
based
on
extensive
research.
We
discussed
main
in
this
field
including
technological
limitations,
multi-scenario
applications,
sustainable
development,
etc.
Mature
photovoltaic
provide
community
with
invaluable
insights
overcoming
industrialization.
upcoming
stages
advancement,
has
become
evident
addressing
concerning
long-term
stability
sustainability
is
paramount.
manner,
can
facilitate
more
effective
integration
into
our
daily
lives.
Advanced Materials,
Год журнала:
2023,
Номер
35(42)
Опубликована: Июль 18, 2023
Inorganic
metal
halide
perovskites
such
as
CsPbI3
are
promising
for
high-performance,
reproducible,
and
robust
solar
cells.
However,
inorganic
sensitive
to
humidity,
which
causes
the
transformation
from
black
phase
yellow
δ,
non-perovskite
phase.
Such
instability
has
been
a
significant
challenge
long-term
operational
stability.
Here,
surface
dimensionality
reduction
strategy
is
reported,
using
2-(4-aminophenyl)ethylamine
cation
construct
Dion-Jacobson
2D
that
covers
of
3D
perovskite
structure.
The
layer
mainly
grows
at
grain
boundaries
perovskite,
effectively
passivating
defects
providing
favourable
interfacial
charge
transfer.
resulting
films
exhibit
excellent
humidity
resistance
when
submerged
in
an
aqueous
solution
(isopropanol:water
=
4:1
v/v)
exposed
50%
air
atmosphere.
2D/3D
cell
(PSC)
achieves
power
conversion
efficiency
(PCE)
19.5%
with
Voc
1.197
eV.
It
retains
83%
its
initial
PCE
after
1260
h
maximum
point
tracking
under
1.2
sun
illumination.
work
demonstrates
effective
way
stabilizing
efficient
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(13), С. 7847 - 7855
Опубликована: Янв. 1, 2024
TBAPF6
ionic
liquid
is
employed
to
treat
CsPbI3
perovskite
films,
and
thereby
low-dimensional
[TBA]PbI3
forms
on
the
surface
defects
are
passivated,
which
contribute
longer
moisture
stability
higher
PCE.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Abstract
Due
to
its
soft
lattice
characteristics,
all‐inorganic
cesium
lead
halide
(CsPbI
3‐x
Br
x
)
perovskite
is
vulnerable
external
environmental
stress
such
as
moisture,
polar
solvent,
illumination.
resulting
in
structural
defects
(V
I
,
i
etc.)
and
ion
mobility.
However,
most
of
the
prior
arts
focus
on
short‐term
static
passivation,
which
has
a
negligible
effect
formed
during
solar
cell
operation.
Herein,
photoisomerizable
molecule,
1,3,3‐trimethylindolino‐8′‐methoxybenzopyrylospiran
(OMe‐SP),
exhibiting
light‐driven
pre‐isomeric
(SP)
post‐isomeric
(PMC)
configurations,
employed
an
interfacial
protective
layer
top
CsPbI
.
The
present
strategy
not
only
effectively
suppresses
migration
halogen
ions,
but
also
enables
sustainable
passivation
defects,
thereby
significantly
reducing
charge
recombination
retarding
degradation.
Consequently,
OMe‐SP‐modified
cells
(PSCs)
exhibit
superior
stability,
maintaining
91%
their
initial
efficiency
after
aging
1032
h
under
maximum
power
point
(MPP)
tracking
continuous
one
sun
Meanwhile,
achieves
impressive
conversion
22.20%,
stands
highest
among
cells.
Overall,
implementation
this
robust
provides
defect
suppression
for
achieving
both
high
PCE
stable
inorganic
perovskite.
The
rapid
advancements
in
material
research
for
lead‐free
inorganic
metal
halide
perovskites
have
fueled
the
pathway
to
design
environmentally
benign
solar‐cells
cater
energy
requirements
future
generations.
vacancy‐ordered
double‐perovskite
Cs
2
SnI
6
with
an
optimum
band‐gap
(≈1.3
eV),
high
absorption
coefficient
(≈10
5
cm
−1
),
ambi‐polar
charge
carrier
transport,
and
structural
compositional
stability
coupled
simple
cost‐effective
solution‐based
synthesis
techniques
seems
be
excellent
candidate
air‐stable
high‐efficiency
solar‐cell‐based
applications.
review
focusses
on
structure–property
relationship
its
critical
dependency
growth
precursors,
conditions,
methods.
recent
additive
engineering
obtain
phase‐pure
uniform
continuous
films
myriad
methods
modulate
optoelectronic
properties
are
summarized.
nature,
origin,
type
of
charge‐carriers
intrinsic
doped
extensively
discussed.
applications
different
solar‐cell
configurations
critically
reviewed
progress
challenges
achieve
ultimate
theoretical
Shockley–Queisser
limit
30–33%
is
presented.
experimental
findings
performance
‐based
under
ambient
controlled
conditions
would
discussed
highlight
feasibility
development
solar‐cells.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 14, 2024
Abstract
Inorganic
perovskites,
with
Cs
+
substituting
volatile
organic
components,
show
great
promise
in
photovoltaic
applications
due
to
their
outstanding
optoelectronic
properties
and
thermal
stability.
However,
the
black‐to‐yellow
phase
transition
of
CsPbI
3
remains
a
challenge
for
realizing
high‐performance
inorganic
perovskite
solar
cells
(IPSCs).
Herein,
an
effective
approach
is
reported
via
incorporating
self‐assembled
molecule
Me‐4PACz
synergistically
stabilize
[PbI
6
]
4−
octahedra
form
hydrophobic
layer
at
interface
grain
boundaries.
An
situ
dehydration
condensation
reaction
observed
during
film
annealing,
which
favors
reduction
undesired
aggregation
humid
air,
thus
leading
enhanced
anchoring
interaction
more
protection
.
Therefore,
air‐processed
films
dramatically
improved
purity
This
strategy
also
improves
energy
level
alignment
between
charge
transport
layers.
As
result,
champion
efficiency
20.21%
realized,
representing
one
highest
values
inverted
IPSCs.
Furthermore,
it
demonstrated
that
by
combining
previously
ethacridine
lactate
(EAL)
additive,
device
performance
can
be
further
boosted
21.38%,
record
IPSCs
date.
Chemical Communications,
Год журнала:
2024,
Номер
60(85), С. 12287 - 12301
Опубликована: Янв. 1, 2024
This
highlight
article
summarizes
the
empirical
advances
in
stabilizing
metastable
phases
of
CsPbI
3
,
aiming
to
provide
useful
guidelines
accelerate
development
phase-stable
CsSnI
for
durable
lead-free
PV
applications.
