Abstract
Inorganic
CsPbI
3
perovskite
quantum
dots
(PQDs)
demonstrate
high
potential
for
new‐generation
photovoltaics,
but
the
imbalanced
surface
stress
of
PQDs
induced
by
ligand
deficiency
and
incompatibility
significantly
deteriorates
their
optoelectronic
properties
phase
stability,
restricting
photovoltaic
performance.
Herein,
a
lattice
regularization
strategy
is
proposed
engineering
PQDs,
in
which
series
onium
cations
with
appropriate
dimensions
good
affinity
are
introduced
into
resulting
substantially
ameliorated
stability
PQDs.
Meanwhile,
engineering,
PQD
solid
enhanced
stacking
orientation
constructed,
facilitating
charge
carrier
transport.
Consequently,
solar
cell
an
efficiency
up
to
17.01%
obtained,
one
highest
values
inorganic
cells.
Such
provides
feasible
access
maximize
high‐performance
optoelectronics.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
Efficiency,
stability,
and
cost
are
crucial
considerations
in
the
development
of
photovoltaic
technology
for
commercialization.
Perovskite
solar
cells
(PSCs)
a
promising
third‐generation
due
to
their
high
efficiency
low‐cost
potential.
However,
stability
organohalide
perovskites
remains
significant
challenge.
Inorganic
perovskites,
based
on
CsPbX
₃
(X
=
Br
−
/I
),
have
garnered
attention
excellent
thermal
optoelectronic
properties
comparable
those
perovskites.
Nevertheless,
inorganic
faces
several
hurdles,
including
need
high‐temperature
annealing
achieve
photoactive
α‐phase
susceptibility
transitioning
into
nonphotoactive
δ‐phase
under
environmental
stressors,
particularly
moisture.
These
challenges
impede
creation
high‐efficiency,
high‐stability
devices
using
low‐cost,
scalable
manufacturing
processes.
This
review
provides
comprehensive
background
fundamental
structural,
physical,
lead‐halide
It
discusses
latest
advancements
fabricating
PSCs
at
lower
temperatures
ambient
conditions.
Furthermore,
it
highlights
progress
state‐of‐the‐art
devices,
manufactured
environments
reduced
temperatures,
alongside
simultaneous
upscaling
PSCs.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 5, 2025
Abstract
The
complete
phase
transition
from
DMAPbI
3
and
Cs
4
PbI
6
intermediates
to
the
final
CsPbI
perovskite
is
pivotal
for
fabricating
high‐quality
inorganic
films.
In
this
study,
reaction
energy
barrier
between
sought
be
reduced
by
increasing
their
surface
energy,
where
a
perfluorinated
compound
designed
using
DFT
modeling
saturate
of
effectively
prevent
crystalline
growth.
Consequently,
smaller
with
ultrahigh
react
more
energetically
facilitate
rapid
conversion
desired
phase.
It
found
that
resultant
shows
improved
crystallinity
morphology,
as
demonstrated
suppressed
non‐radiative
recombination
prolonged
carrier
lifetimes.
As
result,
optimized
solar
cells
(PSCs)
achieve
power
efficiency
(PCE)
over
20%,
along
significantly
light
thermal
stability.
This
work
provides
way
regulate
crystallization
dynamics
advanced
quality
perovskites.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(32)
Опубликована: Май 16, 2024
Abstract
The
passivation
of
the
defects
derived
from
rapid‐crystallization
with
electron‐donating
molecules
is
always
a
prerequisite
to
obtain
desirable
perovskite
films
for
efficient
and
stable
solar
cells,
thus,
in‐depth
understanding
on
correlations
between
molecular
structure
capacity
great
importance
screening
passivators.
Here,
we
introduce
double‐ended
amide
molecule
into
precursor
solution
modulate
crystallization
process
passivate
defects.
By
regulating
intermediate
bridging
skeletons
alkyl,
alkenyl
benzene
groups,
results
show
strength
highly
depends
spin‐state
electronic
that
serves
as
an
intrinsic
descriptor
determine
intramolecular
charge
distribution
by
controlling
orbital
electron
transfer
donor
segment
acceptor
segment.
Upon
careful
optimization,
benzene‐bridged
demonstrates
superior
efficacy
improving
film
quality.
As
physical
proof‐of‐concept,
carbon‐based,
all‐inorganic
CsPbI
2
Br
cell
delivers
significantly
increased
efficiency
15.51
%
remarkably
improved
stability.
Based
same
principle,
champion
24.20
further
obtained
inverted
(Cs
0.05
MA
FA
0.9
)Pb(I
0.93
0.07
)
3
cell.
These
findings
provide
new
fundamental
insights
influence
modulation
effective
cells.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(42)
Опубликована: Июль 25, 2024
Abstract
The
characteristics
of
the
soft
component
and
ionic‐electronic
nature
in
all‐inorganic
CsPbI
3‐x
Br
x
perovskite
typically
lead
to
a
significant
number
halide
vacancy
defects
ions
migration,
resulting
reduction
both
photovoltaic
efficiency
stability.
Herein,
we
present
tailored
approach
which
anion‐fixation
undercoordinated‐Pb
passivation
are
achieved
situ
during
crystallization
by
employing
molecule
derived
from
aniline,
specifically
2‐methoxy‐5‐trifluoromethylaniline
(MFA),
address
above
challenges.
incorporation
MFA
into
film
results
pronounced
inhibition
ion
trap
density,
an
enhancement
grain
size,
extension
charge
carrier
lifetime,
more
favorable
alignment
energy
levels.
These
advantageous
contribute
achieving
champion
power
conversion
(PCE)
22.14
%
for
MFA‐based
solar
cells
(PSCs),
representing
highest
reported
thus
far
this
type
inorganic
metal
cells,
best
our
knowledge.
Moreover,
resultant
PSCs
exhibits
higher
environmental
stability
photostability.
This
strategy
is
anticipated
offer
advantages
large‐area
fabrication,
particularly
terms
simplicity.
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
unknown
Опубликована: Март 7, 2025
The
p-i-n
type
perovskite
solar
cells
with
a
nickel
oxide
(NiOx)
hole
transport
layer
in
combination
self-assembled
monolayers
(SAMs)
have
high
power
conversion
efficiency
(PCE)
of
over
26%.
surface
properties
the
SAM
significant
impact
on
growth
and
crystallization
film.
In
meanwhile,
defects
formed
during
thermal
annealing
at
interface
would
act
as
charge
recombination
centers,
decreasing
device
performance
stability.
To
address
these
issues,
this
work
introduces
3,4,5-trifluorophenylboronic
acid
(3,4,5-3FPBA)
interfacial
modification
to
improve
buried
that
enable
better
With
3,4,5-3FPBA
layer,
based
composition
Cs0.05(FA0.98MA0.02)0.95Pb(I0.95Br0.05)3,
increased
from
21.99%
24.02%.
A
similar
improvement
was
observed
for
Cs0.05FA0.82MA0.13Pb(I0.85Br0.15)3,
where
21.87%
22.76%.
universality
has
been
confirmed.
addition,
resulting
showed
improved
stability,
maintaining
75%
its
initial
after
500
h
continuous
heating
85
°C
unencapsulated
devices.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(44)
Опубликована: Июль 16, 2024
Abstract
Perovskite
quantum
dots
(PQDs)
show
high
potential
for
new‐generation
light‐emitting
diodes
(LEDs)
due
to
their
outstanding
optoelectronic
properties.
Even
though
the
red
PQD‐LEDs
can
be
realized
through
mixing
halide
in
PQDs
tune
spectroscopies,
may
suffer
from
phase
separation
under
a
electric
field,
predominantly
affecting
LED
applications.
Herein,
ligand‐pinning‐assisted
approach
is
reported
spectroscopies
of
CsPbI
3
PQDs,
which
vinyl
phosphonic
acid
(VPA)
applied
as
function
ligands
regulate
nucleation
and
growth
during
synthesis.
Systematically
experimental
studies
theoretical
calculations
are
conducted
comprehensively
understand
functions
VPA
PQD
synthesis,
reveals
that
with
binding
energy
Pb
2+
cations
could
firmly
anchor
on
surface
matrix
without
desorption,
regulating
thus
resulting
tunable
being
realized.
Meanwhile,
also
renovate
defective
substantially
diminishing
trap‐induced
nonradiative
recombination.
Consequently,
deliver
external
efficiency
22.83%,
significantly
improved
compared
control
devices.
This
work
provides
new
avenue
toward
high‐performing
LEDs.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(16), С. 5756 - 5794
Опубликована: Янв. 1, 2024
This
review
comprehensively
discusses
the
latest
advances
in
surface
matrix
regulation
of
perovskite
quantum
dots
and
proposes
opportunities
challenges
for
high-performance
solar
cells.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 5, 2024
Abstract
The
interfacial
management
in
perovskite
solar
cells
(PSCs),
including
mitigating
the
carrier
transport
barrier
and
suppressing
non‐radiative
recombination,
still
remains
a
significant
challenge
for
efficiency
stability
enhancement.
Herein,
by
screening
family
of
fluorine
(F)
terminated
dual‐site
organic
dipole
molecules,
study
aims
to
gain
insight
into
molecular
array
toward
tunable
field.
Both
experimental
theoretical
results
reveal
that
these
functional
molecules
can
effectively
anchor
on
surface
through
Lewis
acid‐base
interaction.
In
addition,
tailored
side‐chain
with
F
atoms
allows
altering
constructing
well
matched
perovskite/Spiro‐OMeTAD
contact.
As
result,
inserting
modulates
interface
deliver
gradient
energy
level
alignment,
facilitating
extraction
transport.
optimal
trifluoro‐methanesulfonamide
mediated
N‐i‐P
PSCs
achieve
highest
25.47%,
together
enhanced
operational
under
1000
h
simulated
1‐sun
illumination
exposure.
These
findings
are
believed
provide
design
sufficient
tunability
perovskite‐based
optoelectronic
devices.
