Angewandte Chemie,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 6, 2025
Abstract
The
inverted
cesium/formamidinium
(CsFA)‐based
methylammonium‐free
perovskite
solar
cells
possess
great
potential
in
simultaneously
realizing
high
power
conversion
efficiency
(PCE)
and
excellent
stability.
However,
the
uncontrollable
crystallization
process
poor
film
quality
hinder
further
enhancement
of
photovoltaic
performance
operational
Herein,
we
propose
a
synergistic
modulation
strategy
defects
at
grain
boundaries
(GBs)
interface
by
using
novel
carbonyl
functionalized
spacer
cation.
L‐Alanine
benzyl
ester
hydrochloride
(L‐ABEHCl)
containing
ammonium
cation
is
incorporated
into
precursor
solution,
increasing
nucleation
rate
reducing
crystal
growth
because
its
strong
interaction
with
components,
leading
to
increased
size
crystallinity.
No
2D
formed
for
L‐ABEHCl
as
additive
whereas
upon
post‐treatment.
It
revealed
that
FA
+
Cs
solution
suppress
formation
perovskite.
As
result,
passivates
GBs
form
organic
salts
Due
minimized
carrier
nonradiative
recombination
losses,
devices
achieve
maximum
PCE
25.77
%
(certified
stabilized
25.59
%),
which
one
highest
PCEs
ever
reported
based
on
vacuum
flash
evaporation
method.
unencapsulated
target
device
maintains
90.85
initial
after
2300
h
continuous
point
tracking,
among
most
stabilities
accomplished
devices.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(13), С. 4670 - 4680
Опубликована: Янв. 1, 2024
The
tricyclic
alkaloid
colchicine
is
applied
to
catalyzed
crystallization
(CC)
of
high-quality
α-FAPbI
3
perovskite
film
in
the
one-step
antisolvent-free
process
for
high
performance
solar
cells.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 17, 2025
Interfacial
trap-assisted
nonradiative
recombination
hampers
the
development
of
metal
halide
perovskite
solar
cells
(PSCs).
Herein,
we
report
a
rationally
designed
universal
passivator
to
realize
highly
efficient
and
stable
single
junction
tandem
PSCs.
Multiple
defects
are
simultaneously
passivated
by
synergistic
effect
anion
cation.
Moreover,
defect
healing
is
precisely
modulated
carefully
controlling
number
hydrogen
atoms
on
cations
steric
hindrance.
Due
minimized
interfacial
energy
loss,
L-valine
benzyl
ester
p-toluenesulfonate
(VBETS)
modified
inverted
PSCs
deliver
power
conversion
efficiency
(PCE)
26.28%
using
vacuum
flash
processing
technology.
suppressing
carrier
recombination,
large-area
modules
with
an
aperture
area
32.144
cm2
perovskite/Si
coupled
VBETS
passivation
PCE
21.00%
30.98%,
respectively.
This
work
highlights
critical
role
hindrance
in
designing
molecular
modulators
advance
stability
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.
ABSTRACT
Perovskite
solar
cells
(PSCs)
have
attracted
considerable
attention
due
to
their
potential
for
high‐efficiency
conversion
and
cost‐effective
fabrication.
Although
the
fabrication
of
perovskite
films
in
ambient
air
offers
environmental
cost
advantages,
presence
water
vapor
oxygen
may
induce
instability
these
films,
thereby
affecting
device
performance.
This
review
aims
comprehensively
explore
recent
advancements
PSCs
air,
while
investigating
various
factors
contributing
degradation.
Addressing
challenges,
diverse
strategies
are
outlined,
encompassing
compositional,
additive,
solvent,
interface
engineering
enhance
performance
stability
fabricated
under
air.
To
facilitate
commercialization
PSCs,
this
paper
summarizes
several
widely
employed
methods
large‐scale
manufacturing
PSCs.
Through
review,
we
aim
offer
some
invaluable
insights
guidance
trajectory
as
well
pros
cons
widespread
applications
field
renewable
energy.
Communications Materials,
Год журнала:
2024,
Номер
5(1)
Опубликована: Июль 23, 2024
Abstract
In
the
last
decade,
laboratory-scale
single-junction
perovskite
solar
cells
have
achieved
a
remarkable
power
conversion
efficiency
exceeding
26.1%.
However,
transition
to
industrial-scale
production
has
unveiled
significant
gap.
The
central
challenge
lies
in
difficulty
of
achieving
uniform,
high-quality
films
on
large
scale.
To
tackle
this
issue,
various
innovative
strategies
for
manipulating
crystallization
emerged
recent
years.
Based
an
in-depth
fundamental
understanding
nucleation
and
growth
mechanisms
large-area
prepared
through
blade/slot-die
coating
methods,
review
offers
critical
examination
manipulation
modules.
Lastly,
we
explore
future
avenues
aimed
at
enhancing
stability
PSMs,
thereby
steering
field
toward
commercially
viable
applications.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 16, 2024
Abstract
Formamidinium‐cesium
lead
triiodide
(FA
1‐x
Cs
x
PbI
3
)
perovskite
holds
great
promise
for
solar
cells
(PSCs)
with
both
high
efficiency
and
stability.
However,
the
defective
surfaces
induced
by
defects
residual
tensile
strain
largely
limit
photovoltaic
performance
of
corresponding
devices.
Here,
passivation
capability
alkylamine‐modified
pyridine
derivatives
surface
FA
is
systematically
studied.
Among
studied
passivators,
3‐(2‐aminoethyl)pyridine
(3‐PyEA)
suitable
size
demonstrated
to
be
most
effective
in
reducing
iodine
impurities
(V
I
2
through
its
strong
coordination
N
.
Additionally,
tail
amino
group
(─NH
from
3‐PyEA
can
react
+
cations
reduce
roughness
films,
reaction
products
also
passivate
vacancies
),
further
strengthen
their
binding
interaction
surfaces.
These
merits
suppressed
nonradiative
recombination
loss,
release
stress
a
favorable
energy‐level
alignment
at
perovskite/[6,6]‐phenyl‐C
61
‐butyric
acid
methyl
ester
interface.
Consequently,
resulting
inverted
PSCs
obtain
an
impressive
power
conversion
(PCE)
25.65%
(certified
25.45%,
certified
steady‐state
25.06%),
along
retaining
96.5%
initial
PCE
after
1800
h
1‐sun
operation
55
°C
air.
Advanced Materials,
Год журнала:
2024,
Номер
37(1)
Опубликована: Ноя. 17, 2024
Abstract
Organic
ammonium
salts
are
extensively
utilized
for
passivating
surface
defects
in
perovskite
films
to
mitigate
trap‐assisted
nonradiative
recombination.
However,
the
influence
of
alkyl
chain
length
on
molecular
orientation
and
spatial
steric
hindrance
salt
remains
underexplored,
hindering
advancements
more
effective
passivators.
Here,
a
series
organic
is
reported
with
varying
lengths
passivate
optimize
band
alignment.
It
revealed
that
long
chains
promote
parallel
surface,
thereby
reinforcing
interaction
defects,
whereas
excessive
introduces
hindrance,
weakening
anion‐perovskite
interactions.
Nonylammonium
acetate
(NAAc)
optimal
achieves
ideal
balance
between
chemical
interactions,
resulting
superior
passivation.
Through
NAAc
passivation,
high‐performance
inverted
solar
cells
(PSCs)
modules
achieved,
power
conversion
efficiencies
(PCE)
25.79%
(certified
25.12%)
19.62%,
respectively.
This
marks
record
PCE
PSCs
utilizing
vacuum
flash
technology
ambient
conditions.
Additionally,
NAAc‐passivated
devices
retain
91%
their
initial
after
1200
h
continuous
maximum
point
operation.
work
offers
new
insights
into
interplay
advancing
design
PSCs.
