Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
Abstract
Vertically
inhomogeneous
strain
within
perovskite
crystalline
layers
remains
a
critical
challenge
for
achieving
high
efficiency
and
enhanced
stability
in
solar
cells.
Herein,
we
address
this
issue
by
integrating
ascorbyl
glucoside
into
hydrothermally
synthesized
TiO2
nanocrystals
from
TiCl4
to
reduce
the
surface
energy
of
electron
transport
layer.
The
reduced
establishes
liquid/solid/air
interface,
creating
dewetting
effect
trigger
stressed
lattice
at
bottom
region.
This
design
aligns
with
liquid/air
interface
top,
typically
accompanied
formation
an
inevitably
strained
top
crystals.
By
precisely
controlling
crystallization
conditions
successfully
achieved
compressively
film
that
is
homogeneously
throughout
out-of-plane
direction.
uniformly
exhibits
significant
efficiency,
along
remarkable
operational
stability,
maintaining
over
95%
its
initial
(T95)
2,000
hours.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
147(9), С. 8004 - 8011
Опубликована: Фев. 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.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 23, 2025
Abstract
The
rapid
crystallization
process
of
perovskite
produces
a
large
number
defects
that
remain
critical
factor
disturbs
the
performance
solar
cells
(PSCs).
In
this
research,
these
challenges
are
mitigated
by
introducing
multifunctional
2,6‐pyridinedicarboxylic
acid
chloride
(PAC)
as
an
additive
into
perovskite.
During
thermal
annealing
process,
predominant
accumulation
PAC
occurs
at
upper
and
buried
interfaces
film.
possesses
multiple
passivating
sites
facilitate
anchoring
lead
iodine
defects,
thereby
enhancing
quality
material
across
both
its
dual
grain
boundaries.
With
unique
property,
combined
with
advantages
enhanced
crystallization,
reduced
non‐radiative
recombination,
boosted
charge
carrier
mobility,
optimal
energy
level
alignment,
PSC
achieved
power
conversion
efficiency
(PCE)
25.60%
maintained
more
than
90%
after
3000
h
under
one
equivalent
light
1400
dark
high
temperature
(85
°C).
interface
passivation
strategy
provides
sustainable
solution
to
stability
environmental
for
commercialization
cells.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
Rational
regulation
of
Me‐4PACz/perovskite
interface
has
emerged
as
a
significant
challenge
in
the
pursuit
highly
efficient
and
stable
perovskite
solar
cells
(PSCs).
Herein,
an
organometallic
molecule
aluminum
glycinate
(AG)
that
contained
amine
(‐NH
2
)
hydroxyl
(Al‐OH)
groups
is
developed
to
tailor
buried
minimize
interface‐driven
energy
losses.
The
Al‐OH
selectively
bonded
with
unanchored
O═P‐OH
bare
NiO‐OH
optimize
surface
morphology
levels,
while
‐NH
group
interacted
specifically
Pb
2+
retard
crystallization,
passivate
Pb‐related
defects,
release
residual
stress.
These
interactions
facilitate
carrier
extraction
reduce
losses,
thereby
realizing
balanced
charge
transport.
Consequently,
AG‐modified
narrow
bandgap
(1.55
eV)
PSC
demonstrates
efficiency
26.74%
(certified
26.21%)
fill
factor
86.65%;
wide
(1.785
realizes
20.71%
champion
excellent
repeatability.
PSCs
maintain
91.37%,
91.92%,
92.00%
their
initial
after
aging
air
atmosphere,
nitrogen‐filled
atmosphere
at
85
°C,
continuously
tracking
maximum
power‐point
under
one‐sun
illumination
(100
mW
cm
−2
for
1200
h,
respectively.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
17(9), С. 14269 - 14277
Опубликована: Фев. 24, 2025
Inverted
perovskite
solar
cells
(PSCs)
have
achieved
great
development,
contributed
by
the
advance
of
self-assembled
monolayer
(SAM)
hole-transporting
layers
(HTLs)
due
to
their
distinctive
molecular
designability.
However,
SAM
HTLs
still
present
challenges
achieving
a
compact
and
ordered
surface,
resulting
in
vacancies
defects
at
interface
as
well
adversely
affecting
growth
perovskites.
In
this
work,
we
propose
micromolecule
postdeposition
process
design
HTL
form
high-quality
perovskites
achieve
highly
efficient
inverted
PSCs.
We
introduce
etidronic
acid
(EA)
fill
reduce
improve
growing
The
EA
can
anchor
substrate
through
P-OH
anchors,
occupying
left
MeO-4PACz,
simultaneously
create
interaction
with
P═O
C-OH
functional
groups.
effectively
fills
reduces
interface,
passivates
perovskites,
facilitates
carrier
transport.
Consequently,
champion
PCE
24.42%
is
for
target
PSCs,
which
much
higher
than
efficiency
(20.08%)
control.
This
research
provides
guided
widely
applicable
strategy
development
further
advances
performance
Meeting
future
energy
demands
with
sustainable
sources
like
photovoltaics
(PV)
presents
significant
land
and
logistical
challenges,
which
can
be
mitigated
by
improving
PV
power
conversion
efficiency
(PCE)
decentralized
solutions
building-integrated
solar-integrated
mobility
systems
(e.g.,
Unmanned
Aerial
Vehicles
(UAVs)).
Metal
Halide
Perovskites
Solar
Cells
(MH-PSCs)
provide
a
transformative,
low-cost
solution
for
high-efficiency
diverse
compositions,
exceptional
optoelectronic
properties,
low-temperature,
solution-based
processability.
Conventionally
the
MH-PSCs
are
fabricated
in
"p-i-n"
or
"n-i-p"
configuration
on
glass-Transparent
Conductive
Oxide
(TCO)
substrates.
While
glass-based
Perovskite
(PSCs)
have
achieved
remarkable
efficiencies,
their
limited
scalability,
high
areal-weight,
mechanical
rigidity
greatly
limit
usage
wearables
electronics,
BIPVs,
e-mobility
applications.
Addressing
these
challenges
requires
"targeted
architectural
innovations"
MH-PSCs,
tailored
to
specific
applications,
drive
practical
deployment
forward.
This
study
reviews
four
innovative
PSC
architectures-Interdigitated
Back
Contact
(IBC)
PSCs,
Lateral
Configuration
(LC)
Fiber-Shaped
(FS)
Substrate-Configuration
(SC)
PSCs-highlighting
design
advancements
enhanced
efficiency,
flexibility,
lightweight,
application-specific
integration.
Importantly,
review
discusses
precise
engineering
required
each
layer
of
innovations
ensure
compatibility,
efficient
charge
transport,
durability,
scalability
while
optimizing
performance,
also
identifying
key
outlining
directions
R&D.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 26, 2025
Abstract
Tin
perovskite
solar
cells
(PSCs)
have
garnered
considerable
attention
as
promising
alternatives
to
lead
PSCs
due
their
lower
toxicity
and
outstanding
optoelectronic
properties.
However,
efficiency
stability,
particularly
in
2D/3D
tin
PSCs,
are
usually
hindered
by
high
defect
densities
inefficient
carrier
transport.
In
this
study,
a
small‐molecule
Lewis
base
with
multiple
functional
groups‐cyanoacetohydrazide
(CAH)
is
employed
mitigate
defects
enhance
charge
transport
PSCs.
It
revealed
that
the
carbonyl,
amine,
cyano
groups
CAH
form
strong
chemical
bonds
Sn
2+
ions,
resulting
synergetic
coordination
effects.
Moreover,
interaction
between
effectively
regulates
crystallization
process
of
film,
high‐quality
film
enhanced
crystallinity,
reduced
density,
modulated
phase
distribution.
As
result,
optimized
achieve
remarkable
power
conversion
15.06%,
marking
one
highest
values
for
Furthermore,
devices
exhibit
retaining
95%
initial
performance
after
2000
h
storage
nitrogen
atmosphere.
