Dual Interface Passivation With Multi‐Site Regulation Toward Efficient and Stable Inverted Perovskite Solar Cells
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 23, 2025
Abstract
The
rapid
crystallization
process
of
perovskite
produces
a
large
number
defects
that
remain
critical
factor
disturbs
the
performance
solar
cells
(PSCs).
In
this
research,
these
challenges
are
mitigated
by
introducing
multifunctional
2,6‐pyridinedicarboxylic
acid
chloride
(PAC)
as
an
additive
into
perovskite.
During
thermal
annealing
process,
predominant
accumulation
PAC
occurs
at
upper
and
buried
interfaces
film.
possesses
multiple
passivating
sites
facilitate
anchoring
lead
iodine
defects,
thereby
enhancing
quality
material
across
both
its
dual
grain
boundaries.
With
unique
property,
combined
with
advantages
enhanced
crystallization,
reduced
non‐radiative
recombination,
boosted
charge
carrier
mobility,
optimal
energy
level
alignment,
PSC
achieved
power
conversion
efficiency
(PCE)
25.60%
maintained
more
than
90%
after
3000
h
under
one
equivalent
light
1400
dark
high
temperature
(85
°C).
interface
passivation
strategy
provides
sustainable
solution
to
stability
environmental
for
commercialization
cells.
Язык: Английский
Fluorine-substituted bifunctional molecules for enhanced perovskite solar cell performance
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 159876 - 159876
Опубликована: Янв. 1, 2025
Язык: Английский
Precise Control of Lead Halide and Ammonium Salt Stoichiometric Ratios for Efficient Perovskite Solar Cells
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 20, 2025
The
precise
stoichiometric
ratio
of
lead
halide
and
organic
ammonium
salts
is
a
fundamental
yet
unresolved
scientific
challenge
in
perovskite
solar
cells
(PSCs).
Conventional
deposition
techniques
fail
to
establish
definitive
structure-performance
relationship
due
limitations
quantitative
control,
leading
inconsistent
film
quality
ambiguous
reaction
pathways.
In
this
work,
approach
using
drop-on-demand
inkjet
printing
systematically
investigate
the
impact
salt
surface
density
on
PSC
performance
developed.
findings
reveal
that
amount
significantly
affects
morphology,
composition,
crystallinity
films,
influencing
overall
device
performance.
Low
densities
below
22
µg
cm-2
produce
thin
films
with
incomplete
crystallization
small
crystals,
hindering
charge
carrier
transport
separation.
Conversely,
high
(89
cm-2)
results
over-reaction
between
PbI2,
low-quality
pinholes,
cracks,
poor
interfacial
contact.
At
optimal
39
cm-2,
it
achieves
high-quality
large
grains,
reduced
defects,
improved
energy
level
alignment,
resulting
champion
efficiency
23.3%
environmental
stability
for
devices.
Язык: Английский
Cosolvent Strategy in Blade-Coating Phenethylammonium Iodide Passivation Layers for Perovskite Solar Cells
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 12, 2025
Perovskite
solar
cells
(PSCs)
often
suffer
from
defects
due
to
rapid
crystallization
in
solution-based
fabrication.
Surface
passivation
using
phenethylammonium
iodide
(PEAI)
can
mitigate
these
defects,
but
traditional
spin-coating
methods
limit
their
scalability.
Blade-coating
offers
a
cost-effective
alternative,
yet
blade-coating
PEAI
layers
isopropanol
(IPA)
based
solution
face
the
challenge
of
uneven
coverage
and
perovskite
degradation.
Here,
we
introduce
dibutyl
alcohol
(TBA)
as
cosolvent
enhance
viscosity
solution,
forming
stable
liquid
column
during
blade-coating.
This
improves
uniformity
reduces
level
IPA-induced
corrosion.
As
result,
PSC
efficiency
increased
21.6%
23.0%,
with
an
improved
open
circuit
voltage
1.14
1.17
V.
The
films
also
exhibited
excellent
moisture
stability,
maintaining
performance
for
3000
h
at
24
°C
50-60%
RH.
study
presents
scalable,
sustainable
strategy
large-area
films,
advancing
industrial
viability
PSCs.
Язык: Английский
Synergistic Surface Reconstruction and Defect Passivation via Guanidine Sulfonate for High-Efficiency Perovskite Photovoltaics
The Journal of Physical Chemistry Letters,
Год журнала:
2025,
Номер
unknown, С. 5221 - 5227
Опубликована: Май 17, 2025
Perovskite
films
have
long
suffered
from
various
defects
located
at
grain
boundaries
and
surfaces
(GBS),
especially
residual
lead
iodide
(PbI2),
which
can
seriously
impair
the
photoelectric
conversion
efficiency
(PCE)
long-term
stability
of
corresponding
photovoltaic
devices.
Herein,
guanidine
sulfamate
(GSM),
with
desired
-NH2,
S═O,
Gua+
functional
groups,
is
introduced
to
perovskite
surface
by
a
post-treatment
process
achieve
high-quality
fewer
defects.
It
was
found
that
-NH2
S═O
in
GSM
contribute
passivation
perovskites
suppress
non-radiative
recombination,
thus
improving
interfacial
carrier
transport
efficiency.
Meanwhile,
(Gua+)
cations
promote
fusion
during
large-sized
grains
effectively
reduce
PbI2
content.
Moreover,
optimized
also
exhibited
better
energy
level
alignment
hydrophobicity.
Consequently,
champion
PCE
solar
cells
(PSCs)
increased
21.69
23.85%
appropriate
GMS
concentration,
along
significant
improvement
storage
light
stability.
Язык: Английский
Mitigating Carrier and Energy Losses via Interface Modulator Toward High‐Performance Perovskite Solar Cells
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 23, 2025
Abstract
Interface
engineering
has
become
the
main
force
in
reforming
photogenerated
carrier
and
energy
losses
perovskite
solar
cells
(PSCs).
Here,
a
multifaceted
hole‐selective
molecule
C‐DPT,
is
designed
synthesized
with
methoxy‐triphenylamine‐carbazole
diphenyl‐triazine
units,
which
employed
as
interface
modulator
between
hole
transport
layer.
The
introduction
of
C‐DPT
endows
perovskite/hole
layer
heterojunction
more
flat
physical
contact,
lower
trap
density,
faster
extraction.
combined
theoretical
experimental
results
decipher
that
possessing
compatible
contact
favorable
binding
ability
can
efficiently
boost
interfacial
defect
restoration,
compensate
energetic
offset,
promote
transportation.
As
result,
C‐DPT‐modified
PSC
delivers
champion
power
conversion
efficiency
24.02%
conjunction
pronouncedly
improved
long‐term
ambient,
thermal,
humidity
stability.
Язык: Английский
New multifunctional additive of 4-fluorophthalic anhydride for efficient and stable perovskite solar cells
Chensi Liu,
Xin Xie,
Siman Yang
и другие.
Journal of Colloid and Interface Science,
Год журнала:
2025,
Номер
698, С. 137996 - 137996
Опубликована: Июнь 2, 2025
Язык: Английский
Interface‐Driven Multi‐Dimensional Regulation of Lead Ion Accumulation and Passivation to Enhance Environmental Stability of Air‐Fabricated Perovskite Solar Cells
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Июнь 3, 2025
Abstract
The
interaction
between
trap
states
and
interface
defects
exacerbates
non‐radiative
recombination
at
the
interface,
reducing
photoconversion
efficiency
affecting
long‐term
stability
of
perovskite
solar
cells
(PSCs).
In
this
study,
it
is
designed
a
multifunctional
modifier,
4‐((cyano(2,4‐difluorophenyl)methyl)amino)‐5‐methyl‐1H‐pyrazole‐3‐carboxylate
(CDFP‐MP),
aimed
multi‐level
regulation
crystallization.
spatial
structural
features
synergistic
action
its
functional
groups
not
only
passivate
major
charge
caused
by
lead
enrichment
to
greatest
extent
but
also
exhibit
good
geometric
compatibility
with
tin
oxide,
effectively
localization
effects.
Through
coordination
ions
in
perovskite,
excessive
aggregation
growth
iodide
during
two‐step
fabrication
process
are
suppressed,
improving
crystallization
dynamics
environment.
This
leads
reduction
carrier
capture
defect
states,
enhanced
transport
efficiency,
increased
diffusion
length,
resulting
power
conversion
(PCE)
25.09%
for
PSCs
fabricated
air‐based
processes.
unencapsulated
maintain
89.08%
initial
PCE
after
2100
h
30±5%
humidity.
Additionally,
application
CDFP‐MP
large‐area
vacuum‐deposited
air
annealing
highlights
scalability
commercial
potential.
Язык: Английский