Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 14, 2024
Abstract
The
synthesis
of
multicomponent
metal
halide
perovskites
(MHPs)
by
cationic
and/or
alloying
allows
band
gap
tuning,
optimizing
performance
and
improving
stability.
However,
these
materials
often
suffer
from
compositional,
structural,
property
inhomogeneities,
leading
to
uneven
carrier
transport
significant
non‐radiative
recombination
losses
in
lead
perovskites.
While
many
researchers
have
focused
on
the
aggregation
perovskite
ions,
impact
surface
potential
has
received
relatively
less
attention.
In
this
study,
multifunctional
ionic
liquid
1‐allyl‐3‐methylimidazole
dicyanamide
(AMI)
is
introduced
into
precursor
effectively
regulate
layer.
This
approach
inhibits
recombination,
enhances
injection,
improves
device
performance.
Surface
homogenization
within
layer
leads
simultaneous
improvements
both
efficiency
stability
solar
cells.
For
wide‐bandgap
(1.81
eV),
optimal
power
conversion
(PCE)
reaches
20.44%,
with
an
open‐circuit
voltage
(
V
oc
)
1.339
V,
a
short‐circuit
current
density
J
sc
17.92
mA
cm
−2
,
high
fill
factor
(FF)
85%.
strategy
also
proved
effective
for
conventional
bandgap
cells
(PSCs)
(1.53
increase
performance,
PCE
increasing
23.22%
25.41%.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Май 22, 2025
Abstract
Currently,
perovskite
solar
cells
have
achieved
commendable
progresses
in
power
conversion
efficiency
(PCE)
and
operational
stability.
However,
some
conventional
laboratory-scale
fabrication
methods
become
challenging
when
scaling
up
material
syntheses
or
device
production.
Particularly,
the
prolonged
high-temperature
annealing
process
for
crystallization
of
perovskites
requires
a
substantial
amount
energy
consumption
impact
modules’
throughput.
Here,
we
report
modified
near-infrared
(NIRA)
process,
which
involves
excess
PbI
2
engineered
crystallization,
efficiently
reduces
preparation
time
active
layer
to
within
20
s
compared
dozens
min
hot
plate
(HPA)
process.
The
study
showed
that
incorporated
promoted
consistent
nucleation
film,
leading
subsequent
rapid
homogeneous
at
NIRA
stage.
Thus,
highly
crystalized
film
was
realized
with
even
better
performance
than
HPA-based
film.
Ultimately,
efficient
modules
36
100
cm
were
readily
fabricated
optimal
PCEs
22.03%
20.18%,
respectively.
This
demonstrates,
first
time,
successful
achievement
high-quality
large-area
films
through
processing.
approach
not
only
significantly
during
production,
but
also
substantially
shortens
manufacturing
cycle,
paving
new
path
toward
commercial-scale
application
modules.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 27, 2025
Abstract
Tin
(Sn)‐based
perovskite
solar
cells
(PSCs)
stand
out
as
a
promising
low‐toxicity
alternative
to
lead
(Pb)‐based
PSCs.
However,
their
progress
is
hindered
by
oxygen‐induced
degradation
and
inherent
crystal
defects,
challenging
efficiency
durability.
Through
density
functional
theory
(DFT)
calculations,
it
found
that
oxyacid
anions
including
HCOO
−
,
HSO
3
H
2
PO
can
strongly
coordinate
with
the
SnI
precursor
form
adducts.
These
complexes
help
inhibit
Sn
2+
/Sn
4+
oxidation
in
solution,
slow
down
crystallization
process,
ultimately
improve
quality
of
CsSnI
.
Moreover,
these
bind
iodine
vacancies
(I
V
)
alloy
within
lattice,
thereby
preventing
oxygen
molecules
from
generating
detrimental
superoxide
ions
at
sites.
Electron
structure
analysis
nonadiabatic
molecular
dynamics
(NAMD)
simulations
show
not
only
eliminate
trap
states
disrupting
5p‐5p
orbitals
interaction
atoms
near
I
but
also
reduce
oscillation
key
energy
weaken
coupling
(NAC).
effects
collectively
contribute
extended
lifetime
charge
carriers.
Notably,
carrier
system
passivated
more
than
15
times.
Consequently,
are
seen
synergistically
enhance
performance
Sn‐based
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(36), С. 14561 - 14571
Опубликована: Янв. 1, 2024
Incorporating
6-(trifluoromethyl)nicotinic
acid
into
a
perovskite
precursor
enhances
the
photovoltaic
performance
and
stability
of
solar
cells
through
multidentate
coordination,
controlled
crystallization,
significant
reduction
in
non-radiative
recombination
centers.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 14, 2024
Abstract
The
synthesis
of
multicomponent
metal
halide
perovskites
(MHPs)
by
cationic
and/or
alloying
allows
band
gap
tuning,
optimizing
performance
and
improving
stability.
However,
these
materials
often
suffer
from
compositional,
structural,
property
inhomogeneities,
leading
to
uneven
carrier
transport
significant
non‐radiative
recombination
losses
in
lead
perovskites.
While
many
researchers
have
focused
on
the
aggregation
perovskite
ions,
impact
surface
potential
has
received
relatively
less
attention.
In
this
study,
multifunctional
ionic
liquid
1‐allyl‐3‐methylimidazole
dicyanamide
(AMI)
is
introduced
into
precursor
effectively
regulate
layer.
This
approach
inhibits
recombination,
enhances
injection,
improves
device
performance.
Surface
homogenization
within
layer
leads
simultaneous
improvements
both
efficiency
stability
solar
cells.
For
wide‐bandgap
(1.81
eV),
optimal
power
conversion
(PCE)
reaches
20.44%,
with
an
open‐circuit
voltage
(
V
oc
)
1.339
V,
a
short‐circuit
current
density
J
sc
17.92
mA
cm
−2
,
high
fill
factor
(FF)
85%.
strategy
also
proved
effective
for
conventional
bandgap
cells
(PSCs)
(1.53
increase
performance,
PCE
increasing
23.22%
25.41%.
