ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(24), P. 31209 - 31217
Published: June 4, 2024
Constructing
a
1D/3D
perovskite
heterojunction
has
recently
emerged
as
prevalent
approach
for
elevating
the
efficiency
and
stability
of
solar
cells
(PSCs),
due
to
excellent
defect-passivation
capacity
enhanced
resistance
water
oxygen
1D
perovskite.
However,
commonly
exhibits
much
poorer
charge
carrier
transport
ability
when
compared
with
its
3D
counterpart.
Tailoring
intrusion
depth
into
is
thus
key
importance
PSCs
but
remains
great
challenge.
We
introduce
herein
novel
anion-regulation
strategy
that
can
effectively
tune
behavior
form
gradual
structure
gradient
energy-level
alignment.
This
1D/3D-perovskite
interface
leads
outstanding
defect
passivation
performance,
together
desired
balance
between
moisture/oxygen
blocking.
Consequently,
resulting
from
tetra-n-butylammonium
acetate
(TBAAc)
treatment
yield
remarkable
enhancement
in
power
conversion
(PCE)
18.4
20.1%.
The
unencapsulated
device
also
demonstrates
retains
90%
initial
PCE
after
2400
h
storage
air
atmosphere
30
±
5%
humidity
at
25
5
°C.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(35)
Published: June 27, 2024
Abstract
Inverted
perovskite
solar
cells
(PSCs)
have
attracted
considerable
attention
due
to
their
distinct
advantages,
including
minimal
hysteresis,
cost‐effectiveness,
and
suitability
for
tandem
applications.
Nevertheless,
the
solution
processing
low
formation
energy
of
perovskites
inevitably
lead
numerous
defects
formed
at
both
bulk
interfaces
layer.
These
can
act
as
non‐radiative
recombination
centers,
significantly
impeding
carrier
transport
posing
a
substantial
obstacle
stability
further
enhancing
power
conversion
efficiency
(PCE).
This
review
delves
into
detailed
discussion
nature
origin
characterization
techniques
employed
defect
identification.
Furthermore,
it
systematically
summarizes
methods
detection
approaches
passivating
interface
within
film
in
inverted
PSCs.
Finally,
this
offers
perspective
on
employing
upscaling
passivation
engineering
modules.
It
is
hoped
provides
insights
PSCs
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 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
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 18, 2024
Abstract
2D
perovskite
passivation
strategies
effectively
reduce
defect‐assisted
carrier
nonradiative
recombination
losses
on
the
surface.
Nonetheless,
severe
energy
are
causing
by
thermalization,
interfacial
recombination,
and
conduction
band
offset
still
persist
at
heterojunction
perovskite/PCBM
interfaces,
which
limits
further
performance
enhancement
of
inverted
PSCs.
Here,
5,10,15,20‐tetrakis(pentafluorophenyl)porphyrin
(5FTPP)
is
introduced
between
3D/2D
PCBM.
Compared
to
tetraphenylporphyrin
without
electron‐withdrawing
fluoro‐substituents,
5FTPP
can
self‐assemble
with
PCBM
interface
into
donor–acceptor
(D–A)
complex
stronger
supramolecular
interaction
lower
transfer
losses.
This
rapid
from
donor
acceptor
(PCBM)
within
femtosecond
scale
demonstrated
enlarge
hot
extraction
rates
ranges,
reducing
thermalization
Furthermore,
incorporation
polystyrene
derivative
(PD)
reinforces
D–A
inhibiting
self‐π–π
stacking
5FTPP,
while
fine‐tuning
suppressing
via
Schottky
barrier,
dipole,
n‐doping.
Notably,
multidentate
anchoring
PD‐5FTPP
FA
+
,
Pb
2+
I
−
mitigates
adverse
effects
volatilization
during
thermal
stress.
Ultimately,
devices
achieve
a
power
conversion
efficiency
25.78%
(certified:
25.36%),
maintaining
over
90%
initial
after
1000
h
continuous
illumination
maximum
point
(65
°C)
under
ISOS‐L‐2
protocol.
Small,
Journal Year:
2024,
Volume and Issue:
20(43)
Published: June 26, 2024
Inverted
perovskite
solar
cells
(PSCs)
attract
continuing
interest
due
to
their
low
processing
temperature,
suppressed
hysteresis,
and
compatibility
with
tandem
cells.
Considerable
progress
has
been
made
reported
power
conversion
efficiency
(PCE)
surpassing
26%.
Electron
transport
Materials
(ETMs)
play
a
critical
role
in
achieving
high-performance
PSCs
because
they
not
only
govern
electron
extraction
from
the
layer
cathode,
but
also
protect
contact
ambient
environment.
On
other
hand,
non-radiative
recombination
losses
at
perovskite/ETM
interface
limits
future
development
of
PSCs.
Compared
fullerene
derivatives,
non-fullerene
n-type
organic
semiconductors
feature
advantages
like
molecular
structure
diversity,
adjustable
energy
level,
easy
modification.
Herein,
ETM
is
systematically
summarized
based
on
functionalization
strategy.
Various
types
design
approaches
for
producing
are
presented,
insight
relationship
chemical
device
performance
discussed.
Meantime,
trend
analyzed.
It
hoped
that
this
review
provides
insightful
perspective
innovation
new
ETMs
toward
more
efficient
stable
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 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.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(32)
Published: May 23, 2024
Abstract
Inverted
perovskite
solar
cells
(PSCs)
are
preferred
for
tandem
applications
due
to
their
superior
compatibility
with
diverse
bottom
cells.
However,
the
solution
processing
and
low
formation
energy
of
perovskites
inevitably
lead
numerous
defects
at
both
bulk
interfaces.
We
report
a
facile
effective
strategy
precisely
modulating
by
incorporating
AlO
x
deposited
atomic
layer
deposition
(ALD)
on
top
interface.
find
that
Al
3+
can
not
only
infiltrate
phase
interact
halide
ions
suppress
ion
migration
separation
but
also
regulate
arrangement
levels
passivate
surface
grain
boundaries.
Additionally,
ALD‐AlO
exhibits
an
encapsulation
effect
through
dense
interlayer.
Consequently,
treatment
significantly
improve
power
conversion
efficiency
(PCE)
21.80
%
1.66
electron
volt
(eV)
PSCs.
A
monolithic
perovskite‐silicon
TSCs
using
‐modified
achieved
PCE
28.5
excellent
photothermal
stability.
More
importantly,
resulting
1.55
eV
PSC
module
25.08
(0.04
cm
2
)
21.01
(aperture
area
15.5
),
respectively.
Our
study
provides
way
efficient
stable
wide‐band
gap
paves
large‐area
inverted