Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
Abstract
The
performance
of
perovskite
solar
cells
has
significantly
improved
over
the
years
in
part
due
to
defect
passivation
bulk
and
at
interfaces.
While
many
additive
molecules
have
been
reported
literature,
they
are
commonly
applicable
only
one
particular
composition.
Here
we
investigate
a
multifunctional
additive,
4‐amino‐5‐bromo
nicotinic
acid
(ABrNA),
for
use
both
methylammonium
(MA)‐free
perovskites
with
different
Br
content
(bandgaps
ranging
from
1.53
1.73
eV)
as
well
MA‐containing
perovskites.
Significant
improvements
obtained
all
compositions,
which
can
be
attributed
presence
multiple
functional
groups
capable
modifying
crystallization
passivating
defects.
Exceptional
features
ABrNA
make
it
promising
universal
passivator,
leads
PCE
increase
23.9%
25.0%
CsFAMA
cells,
22.0%
23.0%
MA‐free
cells.
passivated
devices
also
exhibit
exceptional
operational
stability,
T
90
exceeding
1000
h
under
ISOS‐L‐1
testing
conditions.
In
addition,
significant
improvement
is
observed
modules
conventional
inverted
device
architectures,
further
confirming
universality
additive.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(17), С. 6256 - 6267
Опубликована: Янв. 1, 2024
Crystallization
kinetics
modulation
of
high-performance
flexible
perovskite
photovoltaics
achieving
autonomous
energy
generation
under
outdoor
settings.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 11, 2025
Suppressing
deep-level
defects
at
the
perovskite
bulk
and
surface
is
indispensable
for
reducing
non-radiative
recombination
losses
improving
efficiency
stability
of
solar
cells
(PSCs).
In
this
study,
two
Lewis
bases
based
on
chalcogen-thiophene
(n-Bu4S)
selenophene
(n-Bu4Se)
having
tetra-pyridine
as
bridge
are
developed
to
passivate
in
film.
The
uncoordinated
Pb2+
iodine
vacancy
can
interact
with
chalcogen-concave
group
pyridine
through
formation
acid-base
adduct,
particularly
both
be
surrounded
by
concave
molecules,
resulting
effective
suppression
charge
recombination.
This
approach
enables
a
power
conversion
(PCE)
high
25.37%
(25.18%
certified)
n-i-p
PSCs
stable
operation
65
°C
1-sun
illumination
1300
hours
N2
(ISOS-L-2
protocol),
retaining
94%
initial
efficiency.
Our
work
provides
insight
into
bowl-shaped
base
passivation
coordinated
strategy
high-performance
photovoltaic
devices.
Flexible
perovskite
solar
cells
(f-PSCs)
are
considered
the
most
promising
candidates
in
portable
power
applications.
However,
high
sensitivity
of
crystallization
on
substrate
and
intrinsic
brittleness
usually
trade
off
performance
f-PSCs.
Herein,
we
introduced
an
initiator-free
cross-linkable
monomer
(2,5-dioxopyrrolidin-1-yl)
5-(dithiolan-3-yl)pentanoate
(FTA),
which
can
chemically
passivate
defects
enable
real-time
fine
regulation
crystallization.
The
resulting
film
exhibited
higher
crystallinity,
enlarged
grain
size,
reduced
dependence
substrate.
In
addition,
cross-linked
FTA
[CL(FTA)]
distributed
along
boundaries
effectively
released
residual
stress
securely
bound
grains
together.
Consequently,
CL(FTA)-modified
flexible
PSCs
achieved
a
record-breaking
efficiency
24.64%
(certified
24.08%).
Moreover,
scalable
potential
has
been
verified
by
corresponding
rigid
modules,
delivering
impressive
efficiencies
19.53
17.13%,
respectively.
Furthermore,
optimized
device
demonstrated
bending
durability
improved
operational
stability,
thereby
advancing
progress
f-PSCs
toward
industrialization.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Дек. 4, 2024
Wide-bandgap
perovskite
solar
cells
(WBG-PSCs)
are
critical
for
developing
perovskite/silicon
tandem
cells.
The
defect-rich
surface
of
WBG-PSCs
will
lead
to
severe
interfacial
carrier
loss
and
phase
segregation,
deteriorating
the
device's
performance.
Herein,
we
develop
a
reconstruction
method
by
removing
crystal
nano-polishing
then
passivating
newly
exposed
high-crystallinity
surface.
This
can
refresh
perovskite/electron-transporter
interface
release
residual
lattice
strain,
improving
charge
collection
inhibiting
ion
migration
WBG
perovskites.
As
result,
achieve
certified
efficiencies
23.67%
21.70%
opaque
semi-transparent
PSCs
via
1.67-eV
absorber.
Moreover,
four-terminal
with
efficiency
33.10%
on
an
aperture
area
one
square
centimeter.
wide-bandgap
leads
segregation.
Here,
authors
reconstruct
through
followed
passivation,
achieving
33.1%
Advanced Energy and Sustainability Research,
Год журнала:
2024,
Номер
5(8)
Опубликована: Апрель 26, 2024
Perovskite
solar
cells
(PSCs)
have
gained
tremendous
research
interest
recently
owing
to
several
advantages,
including
low
material
cost,
facile
solution
processability,
bandgap
tunability,
and
alluring
device
efficiency.
The
organic
formamidinium
(FA)
cation‐based
perovskites
are
mainly
considered
as
one
of
the
potential
candidates
for
charge
carrier
generation
due
their
excellent
properties,
such
thermal
stability
than
traditional
perovskites.
However,
inevitable
unfavorable
polymorphism
(i.e.,
α
δ
)
at
room
temperature
still
forms
basis
numerous
works
allow
fabrication
a
high‐quality
absorber
enhances
PSCs
performance.
studies
resolve
contemporary
techniques
(e.g.,
passivation
strategy)
with
recent
novel
methods
presented
in
this
review
form
essence
improvements
PSCs.
morphology
also
influences
charge‐transfer
behavior
device's
lifetime.
Therefore,
understanding
these
properties
is
essential
improve
quality
avoid
many
defects.
This
focuses
on
structure
pure
mixed
FA
various
halides,
cation's
role
composition.
And
comprehensive
overview
double,
triple,
quadrupole
results
proper
scientific
explanations
understand
physics.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 7, 2025
Abstract
engineering
has
emerged
as
a
promising
approach
to
improve
the
stability
and
power
conversion
efficiency
of
perovskite
solar
cells
(PSCs)
by
regulating
crystallization
or
defects.
Conventional
methods
typically
focus
on
single
functional
group,
leading
deficiency
in
simultaneously
addressing
above
mentioned
two
aspects.
Here,
an
innovative
using
(methylsulfonyl)phenyl)prop‐2‐en‐1‐amine
hydroiodide
(MSPPAI)
is
presented
concurrently
effectively
modulate
defect
passivation.
The
unique
structure
MSPPAI,
combining
rigid
conjugated
with
multisite
anchoring
groups
(─NH
2
─SO
─),
enables
precise
regulation
through
strong
interaction
components.
This
promotes
preferred
(100)
orientation
crystals,
enhances
grain
size,
thus
improves
film
quality.
Meanwhile,
approximate
coplanarity
further
facilitate
ordered
directional
growth.
Furthermore,
preventing
volatile
loss
coordinating
residual
Pb
2+
,
MSPPAI
could
stabilize
boundaries
surfaces
reduce
defects
prevent
degradation.
Utilizing
these
mechanisms,
corresponding
based
devices
achieves
25.54%
exhibits
excellent
that
maintains
93%
its
initial
even
after
1600
h
under
humid
conditions.
molecular
design
strategy
presents
novel
for
improving
PSCs.
ACS Applied Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 4, 2025
The
incorporation
of
two-dimensional
(2D)
perovskite
onto
the
three-dimensional
(3D)
structure
presents
an
effective
approach
for
passivating
surface
defects,
optimizing
energy
level
alignment,
and
stabilizing
active
layers
in
solar
cells
(PSCs),
thereby
facilitating
realization
highly
efficient
stable
devices.
However,
it
remains
a
formidable
challenge
to
achieve
precise
composition
controllable
2D/3D
heterojunctions
through
solution
processes.
Additionally,
uncontrolled
cation
exchange
among
organic
constituents
poses
challenges
controlling
positioning
thickness
2D
phases,
resulting
mismatched
band
alignments
unfavorable
recombination.
In
this
study,
fabrication
deterministic
is
achieved
using
solid-phase
hot-pressing
deposition
method,
wherein
investigation
focuses
on
their
growth
mechanisms,
alignments,
film
stabilities.
results
demonstrate
that
uniform
layer
was
formed
3D
under
influence
applied
pressure
heat.
heterojunction
forms
favorable
alignment
with
adjacent
carbon
electrode,
effectively
enhancing
charge
extraction
suppressing
losses
due
interface
As
result,
carbon-based
hole-transport-layer-free
(HTL-free)
PSCs
based
outstanding
power
conversion
efficiency
(PCE)
16.09%.
Moreover,
enhances
hydrophobicity,
leading
significant
improvements
stability.
Therefore,
study
facile
practical
heterojunctions,
offering
potential
opportunities
cost
reduction
performance
enhanced
PSCs.
