The
development
of
inverted
all‐inorganic
perovskite
solar
cells
(PSCs)
is
limited
by
the
defect‐induced
nonradiative
recombination.
Herein,
a
strategy
to
enhance
efficiency
and
stability
p‐i‐n
type
CsPbI
2
Br
introducing
(3‐glycidyloxypropyl)trimethoxysilane
(GOPTS)
into
precursor
solution
reported.
incorporation
GOPTS
significantly
reduces
voids
grain
boundaries
in
films
fabricated
at
low
temperatures
(150
°C).
alkoxy,
epoxy,
ether
groups
effectively
passivate
uncoordinated
Pb,
diminishing
recombination
centers
associated
with
defects.
Density
functional
theory
simulations
suggest
that
increases
vacancy
formation
energies
Cs
I,
leading
reduced
Furthermore,
mitigates
photoinduced
phase
segregation
further
enhances
performance
PSCs.
This
modification
results
an
increase
power
conversion
cells,
from
11.83%
13.32%,
when
self‐assembled
monolayers
are
used
as
hole
transport
layer.
study
underscores
potential
silane‐based
additives
defect
passivation
for
perovskites,
providing
viable
route
advancement
high‐efficiency
cells.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
Efficiency,
stability,
and
cost
are
crucial
considerations
in
the
development
of
photovoltaic
technology
for
commercialization.
Perovskite
solar
cells
(PSCs)
a
promising
third‐generation
due
to
their
high
efficiency
low‐cost
potential.
However,
stability
organohalide
perovskites
remains
significant
challenge.
Inorganic
perovskites,
based
on
CsPbX
₃
(X
=
Br
−
/I
),
have
garnered
attention
excellent
thermal
optoelectronic
properties
comparable
those
perovskites.
Nevertheless,
inorganic
faces
several
hurdles,
including
need
high‐temperature
annealing
achieve
photoactive
α‐phase
susceptibility
transitioning
into
nonphotoactive
δ‐phase
under
environmental
stressors,
particularly
moisture.
These
challenges
impede
creation
high‐efficiency,
high‐stability
devices
using
low‐cost,
scalable
manufacturing
processes.
This
review
provides
comprehensive
background
fundamental
structural,
physical,
lead‐halide
It
discusses
latest
advancements
fabricating
PSCs
at
lower
temperatures
ambient
conditions.
Furthermore,
it
highlights
progress
state‐of‐the‐art
devices,
manufactured
environments
reduced
temperatures,
alongside
simultaneous
upscaling
PSCs.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(32)
Опубликована: Май 16, 2024
Abstract
The
passivation
of
the
defects
derived
from
rapid‐crystallization
with
electron‐donating
molecules
is
always
a
prerequisite
to
obtain
desirable
perovskite
films
for
efficient
and
stable
solar
cells,
thus,
in‐depth
understanding
on
correlations
between
molecular
structure
capacity
great
importance
screening
passivators.
Here,
we
introduce
double‐ended
amide
molecule
into
precursor
solution
modulate
crystallization
process
passivate
defects.
By
regulating
intermediate
bridging
skeletons
alkyl,
alkenyl
benzene
groups,
results
show
strength
highly
depends
spin‐state
electronic
that
serves
as
an
intrinsic
descriptor
determine
intramolecular
charge
distribution
by
controlling
orbital
electron
transfer
donor
segment
acceptor
segment.
Upon
careful
optimization,
benzene‐bridged
demonstrates
superior
efficacy
improving
film
quality.
As
physical
proof‐of‐concept,
carbon‐based,
all‐inorganic
CsPbI
2
Br
cell
delivers
significantly
increased
efficiency
15.51
%
remarkably
improved
stability.
Based
same
principle,
champion
24.20
further
obtained
inverted
(Cs
0.05
MA
FA
0.9
)Pb(I
0.93
0.07
)
3
cell.
These
findings
provide
new
fundamental
insights
influence
modulation
effective
cells.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 28, 2024
Lead
halide
perovskite
solar
cells
(PSCs)
have
demonstrated
power
conversion
efficiencies
comparable
to
silicon-based
cells,
yet
their
instability
under
environmental
stressors,
such
as
humidity,
heat,
and
light,
remains
a
significant
barrier
commercialization.
A
primary
cause
of
this
is
the
uncoordinated
lead
ions
(Pb
Applied Physics Letters,
Год журнала:
2025,
Номер
126(15)
Опубликована: Апрель 1, 2025
Inorganic
CsPbI2Br
perovskite
solar
cells
have
attracted
widespread
attention
due
to
their
outstanding
performance
and
photo-thermal
stability.
However,
the
rapid
crystallization
of
solution-processed
film
often
results
in
poor
crystallinity
a
high
density
defects,
which
seriously
restrict
improvement
device
performance.
Here,
we
introduce
dual-functional
additive,
4-amino-5-aminomethyl-2-methylpyrimidine
(AMP),
regulate
reduce
defect
film.
The
introduction
AMP
notably
improves
morphology
promotes
preferred
crystal
orientation.
C=N
amino
groups
interact
with
Pb2+
Br-
perovskite,
respectively,
effectively
passivating
defects
improving
carrier
lifetime.
As
result,
power
conversion
efficiency
optimized
carbon-based
hole-transport
layer-free
reaches
13.30%,
exceeds
10.66%
control
device.
environmental
light
stability
is
also
significantly
improved.
This
work
provides
valuable
insights
into
development
high-performance
all-inorganic
via
additive
strategies.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 28, 2024
Abstract
Here
robust
Pb‐S
covalency
is
successfully
incorporated
into
CsPbI
3
heterojunction
by
introducing
a
new
zwitterionic
organosulfide‐halide
perovskite
on
top
of
.
Cysteamine
(CYS:
+
NH
(CH
2
)
S
−
will
react
with
PbCl
and
form
3D
much
shallower
fermi
level
surface,
constructing
an
efficient
/[CYS][PbCl
]
heterojunction.
As
result,
interfacial
energy
loss
can
be
significantly
inhibited
device
open‐circuit
voltage
(
Voc
increased
to
over
1.20
V
champion
efficiency
20.38%
in
inverted
solar
cells
(PSCs).
Besides,
the
intrinsic
moisture
phase
stability
[CYS][PbCl
effectively
stabilize
beneath
owing
its
covalency.
PSCs
exhibit
improved
stability,
whether
moist
air
or
under
continuous
maximum
power
point
(MPP)
tracking.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(34), С. 23067 - 23075
Опубликована: Янв. 1, 2024
An
n/n
−
homojunction
at
the
top
perovskite/carbon
interface
is
realized
by
doping
natural
additive
for
accelerating
charge
extraction
and
suppressing
carrier
nonradiative
recombination
in
carbon-based
CsPbI
2
perovskite
solar
cells.
Abstract
CsPbI
2
Br
perovskite
solar
cell
(PSC)
is
a
promising
candidate
for
high‐efficiency
single‐junction
and
tandem
cells.
However,
due
to
the
numerous
surface
defects
of
film
mismatch
energy
levels
at
Br/charge
transport
layer
interface,
power
conversion
efficiency
(PCE)
PSC
still
significantly
lower
than
theoretical
limits.
To
alleviate
those
issues,
in
this
work,
carboxylate‐based
p‐type
polymer,
TTC‐Cl,
employed
modify
layer.
TTC‐Cl
can
interact
with
uncoordinated
Pb
2+
,
thereby
mitigating
surficial
reducing
non‐radiative
recombination
losses.
Furthermore,
also
improves
band
properties
thin
surface,
rendering
it
more
p‐type,
which
facilitates
hole
transport.
Consequently,
PSCs
modification
achieve
remarkable
PCE
17.81%,
notably
higher
that
counterpart
without
(15.87%).
Moreover,
exhibit
better
stability.
This
work
highlights
importance
regulation
via
carboxylate
polymer
further
enhancing
performance
PSCs.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(32)
Опубликована: Май 16, 2024
Abstract
The
passivation
of
the
defects
derived
from
rapid‐crystallization
with
electron‐donating
molecules
is
always
a
prerequisite
to
obtain
desirable
perovskite
films
for
efficient
and
stable
solar
cells,
thus,
in‐depth
understanding
on
correlations
between
molecular
structure
capacity
great
importance
screening
passivators.
Here,
we
introduce
double‐ended
amide
molecule
into
precursor
solution
modulate
crystallization
process
passivate
defects.
By
regulating
intermediate
bridging
skeletons
alkyl,
alkenyl
benzene
groups,
results
show
strength
highly
depends
spin‐state
electronic
that
serves
as
an
intrinsic
descriptor
determine
intramolecular
charge
distribution
by
controlling
orbital
electron
transfer
donor
segment
acceptor
segment.
Upon
careful
optimization,
benzene‐bridged
demonstrates
superior
efficacy
improving
film
quality.
As
physical
proof‐of‐concept,
carbon‐based,
all‐inorganic
CsPbI
2
Br
cell
delivers
significantly
increased
efficiency
15.51
%
remarkably
improved
stability.
Based
same
principle,
champion
24.20
further
obtained
inverted
(Cs
0.05
MA
FA
0.9
)Pb(I
0.93
0.07
)
3
cell.
These
findings
provide
new
fundamental
insights
influence
modulation
effective
cells.
JACS Au,
Год журнала:
2024,
Номер
4(9), С. 3400 - 3412
Опубликована: Авг. 31, 2024
Perovskite
solar
cells
(PSCs)
are
recognized
as
one
of
the
most
promising
next-generation
photovoltaics,
primarily
due
to
their
exceptional
power
conversion
efficiency,
ease
processing,
and
cost-effectiveness.
Despite
these
advantages,
challenges
remain
in
achieving
high-quality
films
ensuring
long-term
stability
PSCs,
which
hinder
widespread
commercialization.
Polymers,
characterized
by
multifunctional
groups,
superior
thermal
stability,
flexible
long
chains,
cross-linking
capabilities,
offer
significant
potential
enhance
performance
reliability
PSCs.
This
review
comprehensively
presents
multifaceted
roles
that
polymers
play
Through
carefully
controlling
interactions
between
perovskites,
crucial
aspects
such
film
crystallization
kinetics,
carrier
transport
process,
ion
migration
issues,
mechanical
properties
under
bending
can
be
effectively
regulated
maximize
device
performance.
Furthermore,
hydrophobic
strong
chelated
networks
significantly
PSCs
various
environmental
conditions
while
mitigating
lead
leakage,
thereby
addressing
concerns
durability.
Moreover,
this
Perspective
identifies
pathways
for
further
advancing
polymer-based
strategies
PSC
applications.
