Improved Conductivity of 2D Perovskite Capping Layer for Realizing High-Performance 3D/2D Heterostructured Hole Transport Layer-Free Perovskite Photovoltaics
Xi Chen,
Wenhuai Feng,
Yuxuan Fang
и другие.
ACS Nano,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 23, 2025
Perovskite
solar
cells
(PSCs)
have
emerged
as
low-cost
photovoltaic
representatives.
Constructing
three-dimensional
(3D)/two-dimensional
(2D)
perovskite
heterostructures
has
been
shown
to
effectively
enhance
the
efficiency
and
stability
of
PSCs.
However,
further
enhancement
device
performance
is
still
largely
limited
by
inferior
conductivity
2D
capping
layer
its
mismatched
energy
level
with
3D
layer.
Here,
we
developed
an
effective
surface
modification
strategy
via
synergically
incorporating
inorganic
high
valence-state
niobium
ion
(Nb5+)
metal
dopants
organic
ammonium
halide
salts
in
situ
construct
a
high-quality
on
top
underlying
As
result,
was
enhanced
43%,
barrier
between
layers
favorably
reduced,
built-in
electric
field
3D/2D
heterostructured
stacks
enlarged.
In
addition,
also
reduced
defect
densities
up
29%,
verified
space-charge-limited-current
(SCLC)
tests.
Benefiting
from
facilitated
charge
extraction
suppressed
non-radiative
recombination,
blade-coated
hole
transport
layer-free
PSCs
based
this
optimized
film
achieved
23.2%,
∼19%
higher
than
that
control
(19.5%),
which
represented
one
best-performing
simplified
architecture
fabricated
scalable
fabrication
technique.
The
modified
perovskite-based
exhibited
improved
operational
stability.
Язык: Английский
In-situ passivation the defects both interfaces for n-i-p perovskite solar cells on regulatory electron-donating units of D-π-A dyes
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 161053 - 161053
Опубликована: Фев. 1, 2025
Язык: Английский
Ambient‐Printed Methylammonium‐Free Perovskite Solar Cells Enabled by Multiple Molecular Interactions
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 22, 2025
Abstract
The
ambient
printing
of
high‐performance
and
stable
perovskite
solar
cells
(PSCs)
is
crucial
for
enabling
low‐cost
energy‐efficient
industrial
fabrication.
However,
producing
high‐quality
films
via
remains
challenging
due
to
direct
exposure
air,
which
easily
induces
additional
stacking
defects
triggers
degradation
compared
fabricated
by
traditional
spin‐coating
under
inert
conditions.
Here,
a
multiple
molecular
interaction
strategy
introduced
address
this
challenge
incorporating
2‐thiazole
formamidine
hydrochloride
(TC)
additive,
effectively
suppressing
defect
formation
during
printing.
specific
interactions
between
TC
precursor
components,
i.e.,
hydrogen
bonds
coordination
interactions,
could
promote
the
crystallization
α‐phase
perovskites
reduce
cation
anion
vacancies
simultaneously
when
drying
in
air.
These
endows
ambient‐printed
with
large
crystalline
grains
eliminated
nanovoids
low
trap‐densities,
improve
charge
carrier
dynamics
prevent
decomposition
hydration
thermal/humidity
stress
long‐term
annealing/ambient
storage.
unencapsulated
PSCs
show
high
efficiency
23.72%
good
stability,
realizing
92%
95%
retention
after
672
h
annealing
at
85
°C
N
2
atmosphere
2088
storage
Язык: Английский
Ion-migration-induced dual interface dipoles for high-performance perovskite solar cells
Matter,
Год журнала:
2025,
Номер
unknown, С. 102085 - 102085
Опубликована: Март 1, 2025
Язык: Английский
Triad of Passivation Strategies for the Fabrication of Perovskite Solar Cells with Mitigated Defects and Enhanced Efficiency
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
In
the
rapidly
evolving
field
of
perovskite
solar
cells
(PSCs),
addressing
defects
poses
a
significant
challenge
due
to
their
diverse
nature
and
varying
patterns
based
on
location.
Effective
defect
control
is
crucial
for
achieving
high
efficiency
in
PSCs.
this
work,
synergistic
triad
passivation
strategy
was
proposed,
termed
“three‐in‐one”
approach.
This
method
incorporates
multifunctional
molecule,
PTR,
into
PbI
2
precursor
solution
during
two‐step
fabrication
film.
The
carboxyl
group
(─COOH)
PTR
interacts
with
SnO
rectify
oxygen
vacancies
its
surface,
alleviating
residual
stress
at
buried
interfaces.
Due
large
volume,
confined
grain
boundaries
(GBs)
gradually
diffuses
towards
upper/
Functional
groups
such
as
carbonyl
(C═O),
sulfurcarbon
(C═S),
(COOH)
play
key
roles
mitigating
GBs
both
Additionally,
acts
an
interfacial
bridging
that
connects
electron
hole
transport
layers.
Consequently,
power
conversion
(PCE)
optimal
device
(n‐i‐p
configuration)
improved
significantly
from
23.04%
(pristine)
25.77%,
certified
value
25.44%.
introduction
effectively
addresses
interfaces,
paving
way
enhanced
performance
Язык: Английский
Dual-intermediator guided methodical molecular exchange towards optimized crystallization kinetics of advanced perovskite solar cells
Nano Energy,
Год журнала:
2025,
Номер
unknown, С. 111169 - 111169
Опубликована: Май 1, 2025
Язык: Английский
Modified Near-Infrared Annealing Enabled Rapid and Homogeneous Crystallization of Perovskite Films for Efficient Solar Modules
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Май 22, 2025
Abstract
Currently,
perovskite
solar
cells
have
achieved
commendable
progresses
in
power
conversion
efficiency
(PCE)
and
operational
stability.
However,
some
conventional
laboratory-scale
fabrication
methods
become
challenging
when
scaling
up
material
syntheses
or
device
production.
Particularly,
the
prolonged
high-temperature
annealing
process
for
crystallization
of
perovskites
requires
a
substantial
amount
energy
consumption
impact
modules’
throughput.
Here,
we
report
modified
near-infrared
(NIRA)
process,
which
involves
excess
PbI
2
engineered
crystallization,
efficiently
reduces
preparation
time
active
layer
to
within
20
s
compared
dozens
min
hot
plate
(HPA)
process.
The
study
showed
that
incorporated
promoted
consistent
nucleation
film,
leading
subsequent
rapid
homogeneous
at
NIRA
stage.
Thus,
highly
crystalized
film
was
realized
with
even
better
performance
than
HPA-based
film.
Ultimately,
efficient
modules
36
100
cm
were
readily
fabricated
optimal
PCEs
22.03%
20.18%,
respectively.
This
demonstrates,
first
time,
successful
achievement
high-quality
large-area
films
through
processing.
approach
not
only
significantly
during
production,
but
also
substantially
shortens
manufacturing
cycle,
paving
new
path
toward
commercial-scale
application
modules.
Язык: Английский
Intermediate‐Phase Homogenization Through Intermolecular Interactions Toward Reproducible Fabrication of Perovskite Solar Cells
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
Abstract
Perovskite
solar
cells,
known
for
high
efficiency,
low‐cost
production,
and
excellent
optoelectronics,
have
drawn
significant
interest
in
the
photovoltaic
research
community.
However,
fabrication
of
these
devices
faces
challenges
environmental
sensitivity
variability
during
manufacturing
processes,
leading
to
unsatisfied
product
yield.
Herein,
an
intermediate‐phase
homogenization
approach
is
presented
regulate
multi‐phase
evolution
film
formation
by
using
tris(2‐benzimidazolylmethyl)amine
(TR‐2‐BA)
additive.
It
shown
that
intermolecular
interaction
TR‐2‐BA
solvent
molecules
effectively
inhibits
diverse
solvated
intermediates,
like
PbI
2
·Dimethyl
sulfoxide
(PbI
·DMSO)
δ
phase,
thereby
results
homogenizing
(Formamidinium)
·Pb
3
I
8
·2DMSO
((FA)
·2DMSO)
intermediate
which
enhances
consistency
nucleation
growth
behaviors.
The
controlled
dynamics
improve
uniformity
crystallinity,
along
with
a
notable
reduction
defect
density.
Consequently,
fabricated
achieve
fill
factor
(FF)
up
84.73%
power
conversion
efficiency
(PCE)
25.24%.
Statistical
from
120
prepared
across
different
batches
seasons
present
strategy
decreases
standard
deviation
device
0.74%
0.38%.
This
work
provides
novel
reproducible
high‐quality
perovskite
cells
under
varying
conditions.
Язык: Английский
Sustainable Green Solvents for Lead Halide Perovskites
Advanced Sustainable Systems,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 26, 2024
Abstract
Lead
halide
perovskites
have
revolutionized
the
field
of
optoelectronics
and
attracted
worldwide
attention
due
to
their
outstanding
semiconducting
characteristics.
Meanwhile,
solution
processability
printability
perovskite
allow
commercialization
solar
cells
(PSCs)
profitable.
However,
deposition
films
usually
uses
polar
aprotic
solvents.
The
popular
antisolvents
are
aromatics
or
aromatic
halogenated
hydrocarbons.
All
them
a
high
risk
toxicity
flammability.
To
reduce
adverse
effects
on
environment
operators
enhance
sustainability
technologies,
researchers
made
lots
efforts
study
sustainable
green
Herein,
selection
criteria
solvents
surveyed.
Methods
solubility
prediction
precursor
comprehensively
discussed
from
perspectives
polarity
Lewis
acid–base
chemistry.
significance
antisolvent
boiling
point
is
emphasized.
Research
advances
in
summarized.
Finally,
this
review
presents
in‐depth
insights
into
green‐solvent‐processable
highlights
research
directions
for
modules
future.
It
lays
good
foundation
development
PSCs.
Язык: Английский