Solar RRL,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 24, 2024
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.
Applied Physics Letters,
Journal Year:
2025,
Volume and Issue:
126(15)
Published: April 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,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 24, 2025
Abstract
Perovskite
solar
cells
have
demonstrated
significant
performance
advancements
over
the
past
decade,
characterized
by
their
low‐cost
fabrication
and
compatibility
with
both
rigid
flexible
substrates.
Despite
potential,
challenges
such
as
long‐term
instability
toxicity
of
lead
in
high‐performance
devices
hinder
commercialization.
Recently,
perovskite‐inspired
material
Cu
2
AgBiI
6
(CABI)
is
explored
a
light
absorber
due
to
its
promising
optoelectronic
properties.
However,
wide
bandgap
difficulties
producing
high‐quality
films
limit
photovoltaic
performance.
In
this
study,
hypophosphorous
acid
(H
3
PO
)
introduced
CABI
precursor
solution,
generating
situ
silver
nanoparticles
that
enhance
absorption
through
localized
surface
plasmon
resonance.
The
incorporation
H
improved
crystallinity
morphology
while
reducing
defect
states.
Solvent
vapor
annealing
further
employed
optimize
film
quality.
As
result,
optimal
cell
achieved
power
conversion
efficiency
2.22%,
fourfold
increase
pristine
(0.55%).
Additionally,
device
an
5.66%
under
1000
lux
6000
K
indoor
illumination,
showcasing
potential
for
powering
Internet
Things
devices.
This
strategy
validated
CuAgBiI
5
system,
offering
pathway
cells.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(32)
Published: May 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,
Journal Year:
2024,
Volume and Issue:
4(9), P. 3400 - 3412
Published: Aug. 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.
ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
7(22), P. 10686 - 10692
Published: Nov. 13, 2024
The
all-inorganic
perovskite
CsPbI2Br
has
garnered
significant
attention
due
to
its
excellent
thermal
stability
and
suitable
band
gap.
use
of
carbon
electrode
materials
can
further
enhance
the
moisture
device
reduce
cost.
However,
introduction
such
causes
an
energy
level
mismatch
poor
contact
between
perovskite,
resulting
in
carrier
recombination.
In
this
study,
we
incorporated
small
molecule
N-(4-Cyanophenyl)guanidine
(NG)
as
a
modifier
passivate
trap
density,
manage
level,
improve
interface
contact.
With
addition
NG,
efficiency
increased
from
10.24%
12.89%.
Moreover,
was
significantly
improved.
This
study
underscores
importance
modifiers
offers
concise
strategy
for
enhancing
solar
cells
with
respect
performance
stability.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(35), P. 13392 - 13400
Published: Aug. 19, 2024
Understanding
the
fundamental
chemistry
of
perovskite
precursor
is
crucial
to
accurately
controlling
crystal
morphology
films
and
thus
contributing
efficient
stable
solar
cells.
Here,
we
report
growth
uniform
pinhole-free
CsPbI2Br
via
engineering
by
introducing
a
small
amount
4,4′-dihydroxybiphenyl.
The
rationally
designed
exhibits
colloidal
feature
with
an
average
size
175
nm
due
hydrogen
bonding
between
As
result,
coherent
across
bottom
surface
film
realized,
affording
high-quality
teeth-like
crystals
enlarged
significantly
reduced
carrier
traps.
Eventually,
prepared
inorganic
cells
tailored
precursors
exhibit
high
power
conversion
efficiency
16.86%,
along
impressive
open-circuit
voltage
1.38
V.
Moreover,
compared
control
devices,
unencapsulated
target
devices
show
remarkably
enhanced
thermal
UV
stability
in
ambient
atmosphere.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 28, 2024
Abstract
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
2+
),
which
accelerates
degradation
PSCs
pose
concerns
due
potential
leakage.
Recently,
introduction
ligands
into
has
shown
promise
in
mitigating
toxicity
through
effective
passivation,
primarily
by
forming
hydrogen
bonds
(H‐bonds)
between
functional
groups
structure.
In
minireview,
we
explore
critical
role
H‐bonds
stabilizing
enhancing
structural
integrity
layer
reducing
Furthermore,
discuss
contribution
these
defect
hydrophobicity,
self‐encapsulation,
cross‐linking,
self‐healing
mechanisms.
These
insights
will
highlight
multi‐functional
capabilities
improving
long‐term
stability
durability
PSCs,
offering
pathways
address
current
challenges
Applied Physics Letters,
Journal Year:
2024,
Volume and Issue:
125(25)
Published: Dec. 16, 2024
Inorganic
CsPbI2Br
perovskites
solar
cells
(PSCs)
have
attracted
extensive
interest
owing
to
their
outstanding
optoelectronic
properties.
Nevertheless,
the
undesirable
perovskite
film
quality
and
severe
charge
recombination
dramatically
restrict
performance
improvement.
Herein,
we
propose
an
additive
strategy
modulate
crystallization
process
reduce
defect
density
by
adding
3-(1-pyridinio)-1-propanesulfonate
(PPS)
zwitterionic
molecules
into
precursor
solution.
The
incorporation
of
PPS
zwitterion
can
not
only
retard
crystal
growth
rate
with
uniform
morphology
enlarged
grain
size,
but
also
effectively
passivate
defects
via
interacting
uncoordinated
sites
in
film.
In
addition,
greatly
ameliorates
energy
level
alignments
at
interface.
Thus,
photogenerated
carriers
are
more
efficiently
extracted,
nonradiative
is
significantly
suppressed.
With
these
benefits,
optimized
PPS-based
device
delivers
a
champion
efficiency
16.37%
high
open-circuit
voltage
(VOC)
1.302
V
contrast
pristine
inferior
14.26%
(VOC
1.183
V).
unencapsulated
presents
improved
long-term
stability
preserving
∼85%
initial
after
760
h
storage
ambient
atmosphere.
These
findings
provided
important
insights
using
materials
for
constructing
efficient
stable
inorganic
PSCs.
Solar RRL,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 24, 2024
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.
