Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(36)
Published: June 11, 2024
Abstract
Developing
large‐scale
monolithic
perovskite/silicon
tandem
devices
based
on
industrial
Czochralski
silicon
wafers
will
likely
have
to
adopt
double‐side
textured
architecture,
given
their
optical
benefits
and
low
manufacturing
costs.
However,
the
surface
engineering
strategies
that
are
widely
used
in
solution‐processed
perovskites
regulate
interface
properties
not
directly
applicable
micrometric
textures.
Here,
we
devise
a
passivation
strategy
by
dynamic
spray
coating
(DSC)
fluorinated
thiophenethylammonium
ligands,
combining
advantages
of
providing
conformal
coverage
suppressing
phase
conversion
surfaces.
From
viewpoint
molecular
engineering,
theoretical
calculation
experimental
results
demonstrate
introducing
trifluoromethyl
group
provide
more
effective
through
strong
interaction
energy
alignment
forming
dipole
layer.
Consequently,
DSC
treatment
this
bifunctional
molecule
enables
cells
achieve
certified
stabilized
power
efficiency
30.89
%.
In
addition,
encapsulated
display
excellent
operational
stability
retaining
over
97
%
initial
performance
after
600
h
continuous
illumination.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(21)
Published: Feb. 24, 2024
Light-induced
phase
segregation
is
one
of
the
main
issues
restricting
efficiency
and
stability
wide-bandgap
perovskite
solar
cells
(WBG
PSCs).
Small
organic
molecules
with
abundant
functional
groups
can
passivate
various
defects,
therefore
suppress
ionic
migration
channels
for
segregation.
Herein,
a
series
pyridine-derivative
isomers
containing
amino
carboxyl
are
applied
to
modify
surface.
The
amino,
carboxyl,
N-terminal
pyridine
in
all
these
interact
undercoordinated
Pb
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 25, 2024
Abstract
Wide‐bandgap
(WBG)
perovskite
solar
cells
(PSCs)
are
recognized
as
promising
candidates
for
diversified
photovoltaics
(PVs),
such
tandem
devices,
indoor
PVs,
and
semitransparent
building‐integrated
PVs.
However,
these
WBG
perovskites
made
from
a
mixed‐halides
strategy
suffer
severe
phase
segregation
under
continuous
illumination,
leading
to
exacerbated
non‐radiative
recombination,
consequently
decreased
open‐circuit
voltage
efficiency.
In
this
review,
the
generation
reversal
processes
of
in
meticulously
introduced.
Additionally,
major
characterization
techniques
presented.
A
detailed
summary
recent
progress
enhancing
photostability
PSCs
through
various
strategies
is
provided.
These
primarily
concentrate
on
composition
regulation,
crystallization
modulation,
inhibition
ion
migration,
strain
regulation.
Finally,
perspectives
potential
directions
carefully
discussed
promote
further
development
high‐efficiency
photostable
PSCs.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(4), P. 4751 - 4762
Published: Jan. 19, 2024
Perovskite
solar
cells
(PSCs)
based
on
sputtered
nickel
oxide
(NiOx)
hole
transport
layer
have
emerged
as
promising
configuration
due
to
their
good
stability,
cost-effectiveness,
and
scalability.
However,
the
adverse
chemical
redox
reaction
at
NiOx/perovskite
interface
remains
an
ever-present
problem
that
has
not
yet
been
well
solved.
To
address
this
issue
before,
problems
cation
deprotonation
iodide
oxidation
occurred
in
precursor
solution
easily
result
interfacial
should
be
prevented.
Hence,
we
report
efficient
strategy
simultaneously
suppress
stabilize
by
incorporating
a
reducing
weakly
acidic
stabilizer,
l-ascorbic
acid
(l-AA).
l-AA
can
reduce
I2
generated
during
I–.
Furthermore,
protons
ionized
adjacent
enol
hydroxyl
groups
effectively
impede
of
organic
cations
resulting
from
reaction.
Attributing
improved
crystallization
perovskite
film
suppression
l-AA,
inverted
PSC
such
light
absorber
achieves
impressive
power
conversion
efficiency
(PCE)
22.72%
along
with
high
open-circuit
voltage
1.19
V.
Notably,
further
introducing
into
large-area
modules
slot-die
coating
method
air
enables
remarkable
PCE
19.17%,
which
reaches
one
highest
PCEs
reported
for
(PSMs)
(active
area
>50
cm2)
date.
located
buried
also
forms
barrier
prevent
undesirable
reactions
interface,
significantly
enhancing
device
stability
PSMs.
These
findings
our
work
provide
important
guidance
improving
fabrication
highly
efficient,
low-cost,
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 5, 2025
Abstract
The
interfaces
of
each
layer
in
perovskite
solar
cells
(PSCs)
have
a
significant
impact
on
the
charge
transfer
and
recombination.
Especially,
interface
between
hole
transport
(HTL)
p‐i‐n
type
PSCs
significantly
affects
contact
characteristics
HTL
perovskite,
hindering
further
improvements
performance
stability.
Herein,
small
molecule
9‐Fluorenylmethoxycarbonyl
chloride
(9‐YT)
is
introduced
as
bridge
for
PSCs,
which
enhances
interaction
self‐assembly
molecules
(SAMs)
perovskite.
conjugated
backbone
9‐YT
can
interact
with
SAM
(MeO‐2PACz)
by
π–π
stacking
reaction.
Moreover,
also
improves
interfacial
through
strong
interactions
where
carbonyl
groups
Cl
atoms
uncoordinated
Pb
2+
layer.
incorporation
demonstrated
to
markedly
enhance
extraction
at
perovskite/hole
interface,
optimize
energy
level
alignment,
mitigate
recombination,
passivate
defects
Finally,
device
treated
achieves
power
conversion
efficiency
(PCE)
24.82%.
At
same
time,
still
maintain
92.6%
original
PCE
after
long‐term
stability
test
1200
h.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(13), P. 4692 - 4702
Published: Jan. 1, 2024
The
organic
spacer
cation
with
ultra-large
dipole
moment
results
in
the
formation
of
p-type
2D
perovskites
and
3D/2D
p–n
junctions.
hole
transport
layer-free
carbon-based
perovskite
solar
cells
achieve
an
efficiency
20.08%.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(39)
Published: July 30, 2024
Abstract
Semi‐transparent
perovskite
solar
cells
(ST‐PSCs)
are
promising
for
their
application
in
building
integrated
photovoltaics
(BIPVs).
For
BIPVs,
a
light
utilization
efficiency
(LUE)
>
2.5
is
required
which
multiplication
of
average
visible
transmittance
(AVT)
and
power
conversion
(PCE).
Generally,
semitransparency
achieved
by
reducing
film
thickness
increases
AVT
but
decreases
PCE
resulting
lower
LUE.
Here,
an
interface
engineering
strategy
employed
on
wide
bandgap
thin
absorber
layer
to
increase
The
study
employs
three
different
alkylamine
hydrochlorides
molecules
with
varied
alkyl
chain
length,
viz.,
2‐chloroethylamine‐hydrochloride,
3‐chloropropylamine‐hydrochloride,
4‐chlorobutyalamine‐hydrochloride
at
perovskite/electron
transport
(ETL)
investigates
effect
crystallization.
Further,
it
demonstrated
that
can
strongly
interact
suppress
non‐radiative
recombination
facilitating
charge
the
perovskite/ETL
interface.
Devices
post‐treated
interfacial
layer,
demonstrate
higher
LUE
3.45%
(PCE
14.11%)
≈25%
(400–800
nm),
V
oc
1.23
V.
Moreover,
unencapsulated
devices
retain
≈89%
initial
after
storage
1500
h
under
relative
humidity
≈35–40%.
This
provides
efficient
approach
improve
stability
ST‐PSCs
energy‐efficient
smart
windows.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Abstract
Recent
advances
in
wide‐bandgap
(WBG)
perovskite
solar
cells
(PSCs)
demonstrate
a
burgeoning
potential
to
significantly
enhance
photovoltaic
efficiencies
beyond
the
Shockley–Queisser
limit
for
single‐junction
cells.
This
review
explores
multifaceted
improvements
WBG
PSCs,
focusing
on
novel
compositions,
halide
substitution
strategies,
and
innovative
device
architectures.
The
of
iodine
with
bromine
organic
ions
such
as
FA
MA
Cs
lattice
is
emphasized
its
effectiveness
achieving
higher
open‐circuit
voltages
reduced
thermalization
losses.
Furthermore,
integration
advanced
charge
transport
layers
interface
engineering
techniques
discussed
critical
minimizing
voltage
(
V
OC
)
deficits
improving
photo‐stability
these
utilization
PSCs
diverse
applications
semitransparent
devices,
indoor
photovoltaics,
multijunction
tandem
devices
also
explored,
addressing
both
their
current
limitations
solutions.
culminates
comprehensive
assessment
challenges
impeding
industrial
scale‐up
PSC
technology
offers
perspective
future
research
directions
aimed
at
realizing
highly
efficient
stable
commercial
applications.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(24), P. 15991 - 16001
Published: June 3, 2024
Phase
heterogeneity
of
bromine–iodine
(Br–I)
mixed
wide-bandgap
(WBG)
perovskites
has
detrimental
effects
on
solar
cell
performance
and
stability.
Here,
we
report
a
heterointerface
anchoring
strategy
to
homogenize
the
Br–I
distribution
mitigate
segregation
Br-rich
WBG-perovskite
phases.
We
find
that
methoxy-substituted
phenyl
ethylammonium
(x-MeOPEA+)
ligands
not
only
contribute
crystal
growth
with
vertical
orientation
but
also
promote
halide
homogenization
defect
passivation
near
buried
perovskite/hole
transport
layer
(HTL)
interface
as
well
reduce
trap-mediated
recombination.
Based
improvements
in
homogeneity
contacts,
NiOx-based
opaque
cells
(WBG-PSCs)
achieved
impressive
open-circuit
voltage
(Voc)
fill
factor
(FF)
values
1.22
V
83%,
respectively.
Moreover,
semitransparent
WBG-PSCs
exhibit
PCE
18.5%
(15.4%
for
IZO
front
side)
high
FF
80.7%
(79.4%
designated
illumination
area
(da)
0.12
cm2.
Such
further
enables
24.3%-efficient
two-terminal
perovskite/silicon
(double-polished)
tandem
(da
1.159
cm2)
Voc
over
1.90
V.
The
devices
show
operational
stability
1000
h
during
T90
lifetime
measurements.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(36)
Published: June 11, 2024
Abstract
Developing
large‐scale
monolithic
perovskite/silicon
tandem
devices
based
on
industrial
Czochralski
silicon
wafers
will
likely
have
to
adopt
double‐side
textured
architecture,
given
their
optical
benefits
and
low
manufacturing
costs.
However,
the
surface
engineering
strategies
that
are
widely
used
in
solution‐processed
perovskites
regulate
interface
properties
not
directly
applicable
micrometric
textures.
Here,
we
devise
a
passivation
strategy
by
dynamic
spray
coating
(DSC)
fluorinated
thiophenethylammonium
ligands,
combining
advantages
of
providing
conformal
coverage
suppressing
phase
conversion
surfaces.
From
viewpoint
molecular
engineering,
theoretical
calculation
experimental
results
demonstrate
introducing
trifluoromethyl
group
provide
more
effective
through
strong
interaction
energy
alignment
forming
dipole
layer.
Consequently,
DSC
treatment
this
bifunctional
molecule
enables
cells
achieve
certified
stabilized
power
efficiency
30.89
%.
In
addition,
encapsulated
display
excellent
operational
stability
retaining
over
97
%
initial
performance
after
600
h
continuous
illumination.
