Angewandte Chemie,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 9, 2025
Abstract
Currently,
the
development
of
polymeric
hole‐transporting
materials
(HTMs)
lags
behind
that
small‐molecule
HTMs
in
inverted
perovskite
solar
cells
(PSCs).
A
critical
challenge
is
conventional
are
incapable
forming
ultra‐thin
and
conformal
coatings
like
self‐assembly
monolayers
(SAMs),
especially
for
substrates
with
rough
surface
morphology.
Herein,
we
address
this
by
designing
anchorable
(CP1
to
CP5).
Specifically,
coordinative
pyridyl
groups
introduced
as
side‐chains
on
poly‐triarylamine
(PTAA)
backbone
varied
contents
copolymerization
method,
resulting
chemical
interactions
between
substrates.
The
strong
interaction
allows
them
be
processed
into
ultra‐thin,
uniform,
robust
layers
through
employing
low‐concentration
solutions
(0.1
mg
mL
−1
,
vs.
2.0–5.0
PTAA),
greatly
decreasing
charge
transport
losses.
Moreover,
upon
systematically
tuning
substitution
ratio,
energy
levels,
wetting,
solution
processability,
defect
passivation
capability
such
simultaneously
optimized.
Based
optimal
CP4,
achieved
highly
efficient
PSCs
power
conversion
efficiencies
(PCEs)
up
26.21
%,
which
par
state‐of‐the‐art
SAM‐based
PSCs.
Furthermore,
these
devices
exhibit
enhanced
stabilities
under
repeated
current–voltage
scans
reverse
bias
ageing
compared
devices.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Carbon-based
printable
mesoscopic
solar
cells
(p-MPSCs)
offer
significant
advantages
for
industrialization
due
to
their
simple
fabrication
process,
low
cost,
and
scalability.
Recently,
the
certified
power
conversion
efficiency
of
p-MPSCs
has
exceeded
22%,
drawing
considerable
attention
from
community.
However,
key
challenge
in
improving
device
performance
is
achieving
uniform
high-quality
perovskite
crystallization
within
mesoporous
structure.
This
review
highlights
recent
advancements
p-MPSCs,
with
an
emphasis
on
controlling
kinetics
regulating
morphology
confined
mesopores.
It
first
introduces
offering
a
solid
foundation
understanding
behavior.
Additionally,
summarizes
mechanisms
crystal
nucleation
growth,
explaining
how
these
processes
influence
quality
perovskites.
Furthermore,
commonly
applied
strategies
enhancing
quality,
such
as
additive
engineering,
solvent
evaporation
controlling,
post-treatment
techniques,
are
also
explored.
Finally,
proposes
several
potential
suggestions
aimed
at
further
refining
crystallization,
inspiring
continued
innovation
address
current
limitations
advance
development
p-MPSCs.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Feb. 1, 2025
Carrier
transport
and
recombination
at
the
buried
interface
of
perovskite
have
seriously
restricted
further
development
inverted
solar
cells
(PSCs).
Herein,
an
interfacial
dipolar
chemical
bridge
strategy
to
address
this
issue
is
presented.
2-(Diphenylphosphino)
acetic
acid
(2DPAA)
selected
as
linker
reconstruct
dipole,
which
effectively
enlarges
dipole
moment
5.10
D
optimizes
a
positive
orientation,
thereby
accelerating
vertical
hole
transport,
suppressing
nonradiative
promoting
crystallization.
The
champion
device
yields
high
power
conversion
efficiency
(PCE)
26.53%
(certified
26.02%).
Moreover,
extended
wide-bandgap
large-area
devices,
delivers
PCEs
22.02%
24.11%,
respectively.
optimized
devices
without
encapsulation
also
demonstrate
great
long-term
shelf
operational
stability.
Our
work
highlights
importance
orientation
realize
efficient
stable
PSCs.
hindered
cells.
Here,
authors
employ
achieving
maximum
24.11%
for
small-
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
147(9), P. 8004 - 8011
Published: Feb. 18, 2025
Self-assembled
monolayer
molecules
have
been
widely
employed
as
interfacial
transport
materials
in
inverted
perovskite
solar
cells
(PSCs),
demonstrating
high
efficiency
and
improved
device
stability.
However,
self-assembling
(SAM)
often
suffer
from
aggregation
weak
interactions
with
the
layer,
resulting
inefficient
charge
transfer
significant
energy
losses,
ultimately
limiting
power
conversion
long-term
stability
of
cells.
In
this
work,
we
developed
a
series
novel
skeleton-matching
carbazole
isomer
SAMs
based
on
following
key
design
principles:
(1)
introducing
benzene
ring
structure
to
distort
molecular
skeleton
SAM,
thereby
preventing
achieving
uniform
distribution
fluorine-doped
tin
oxide
(FTO)
substrates;
(2)
strategically
incorporating
methoxy
groups
onto
at
different
positions
(ortho,
meta,
para).
These
functional
not
only
increase
anchoring
points
layer
but
also
fine-tune
dipole
moment.
Among
SAMs,
m-PhPACz
exhibits
most
favorable
properties,
maximum
moment
2.4
D
an
O-O
distance
that
aligns
excellently
diagonal
lead
ions
adjacent
lattice,
enhancing
SAM-perovskite
interactions,
facilitating
efficient
extraction,
improving
As
result,
new
SAM-based
PSCs
achieved
impressive
26.2%,
12.9%
improvement.
Moreover,
devices
demonstrated
outstanding
photothermal
stability,
retaining
96%
their
initial
PCE
after
1000
h
85
°C
maintaining
90%
300
UV-light
exposure.
Angewandte Chemie International Edition,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 9, 2025
Abstract
Currently,
the
development
of
polymeric
hole‐transporting
materials
(HTMs)
lags
behind
that
small‐molecule
HTMs
in
inverted
perovskite
solar
cells
(PSCs).
A
critical
challenge
is
conventional
are
incapable
forming
ultra‐thin
and
conformal
coatings
like
self‐assembly
monolayers
(SAMs),
especially
for
substrates
with
rough
surface
morphology.
Herein,
we
address
this
by
designing
anchorable
(CP1
to
CP5).
Specifically,
coordinative
pyridyl
groups
introduced
as
side‐chains
on
poly‐triarylamine
(PTAA)
backbone
varied
contents
copolymerization
method,
resulting
chemical
interactions
between
substrates.
The
strong
interaction
allows
them
be
processed
into
ultra‐thin,
uniform,
robust
layers
through
employing
low‐concentration
solutions
(0.1
mg
mL
−1
,
vs.
2.0–5.0
PTAA),
greatly
decreasing
charge
transport
losses.
Moreover,
upon
systematically
tuning
substitution
ratio,
energy
levels,
wetting,
solution
processability,
defect
passivation
capability
such
simultaneously
optimized.
Based
optimal
CP4,
achieved
highly
efficient
PSCs
power
conversion
efficiencies
(PCEs)
up
26.21
%,
which
par
state‐of‐the‐art
SAM‐based
PSCs.
Furthermore,
these
devices
exhibit
enhanced
stabilities
under
repeated
current–voltage
scans
reverse
bias
ageing
compared
devices.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 3, 2025
Abstract
The
inverted
perovskite
solar
cells
based
on
hole‐selective
self‐assembled
molecules
(SAMs)
have
been
setting
new
efficiency
benchmarks.
However,
the
agglomeration
of
SAM
and
lack
defect
passivation
ability
are
two
critical
issues
that
need
to
be
addressed.
It
is
demonstrated
by
blending
co‐adsorbent
4‐phosphoricbutyl
ammonium
iodide
(4PBAI)
with
4‐(7H‐dibenzo[c,g]carbazole‐7‐yl)
phosphonic
acid
(4PADCB),
enhanced
homogeneity,
conductivity,
better
energy
levels
can
realized
for
co‐SAM
contact.
functional
group
4PBAI
also
effectively
passivate
defects
at
buried
interface
template
high‐quality
growth.
Assisted
synergistic
top
modification,
power
conversion
optimized
device
reaches
24.96%,
which
retain
95%
initial
after
1200
h
in
ambient
unencapsulated
device.
findings
suggest
a
well‐designed
address
limitations
further
enhance
performance
cutting‐edge
SAMs.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 16, 2025
Abstract
The
brittle
buried
interface,
characterized
by
weak
adhesion
to
the
substrate,
numerous
imperfections,
and
unfavorable
strain,
poses
a
significant
challenge
that
impairs
overall
performance
long‐term
stability
of
perovskite
solar
cells
(PSCs).
Herein,
robust
molecular
zipper
is
constructed
through
in
situ
polymerization
self‐assembly
monomer
4‐vinylbenzoic
acid
(VA),
tightly
link
interface
substrate
n‐i‐p
PSCs
with
an
adhesive
strength
as
high
10.77
MPa.
modified
exhibits
improved
morphology,
suppressed
defects,
released
matched
energy
level
alignment.
resulting
deliver
absolute
gain
≥1.67%
champion
power
conversion
efficiency
based
on
both
one‐step
deposition
protocol
two‐step
one,
demonstrating
universality
this
strategy
across
different
film‐processing
scenarios.
unencapsulated
can
retain
94.2%
their
initial
after
550
h
linear
extrapolated
T
90
value
1230
h,
per
ISOS‐L‐2
protocol.
This
work
provides
facile
reinforce
PSCs.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 17, 2025
Abstract
[4‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)butyl]phosphonic
acid
(Me‐4PACz)
consistently
exhibits
inhomogeneous
distribution
on
the
substrate,
which
makes
it
a
challenge
for
growth
of
high‐quality
perovskite
film,
resulting
in
undesired
interfacial
losses
at
buried
interfaces.
Moreover,
flexible
alkyl
chains
Me‐4PACz
are
not
conducive
to
intermolecular
interactions
and
hinder
charge
flow.
Here,
novel
molecule
with
4‐Methoxy‐N‐(4‐methoxyphenyl)‐N‐phenylaniline
(TPA)
carbazole
backbone,
named
CzTPA
is
designed,
constituted
Co‐SAM
Me‐4PACz.
The
two
carboxyls
end
will
act
as
an
anchoring
group
cover
inadequate
coverage
NiO
x
.
methoxy
TPA
can
passivation
uncoordinated
Pb
2+
interface
by
interaction
Pb─O.
Additionally,
be
restrained
self‐aggregation
interacting
CzTPA.
cooperation
realizes
more
homogeneous
,
efficient
transport,
minimize
defects.
Accordingly,
modification
significantly
enhance
efficiency
1.54‐eV
PSCs
from
23.53%
25.66%
sustain
91.4%
its
original
after
1992
h
under
continuous
illumination
65
°C.
More
importantly,
1.68
eV
wide‐bandgap
PSC
achieved
PCE
22.75%
good
photostability.