Solar RRL,
Journal Year:
2024,
Volume and Issue:
8(8)
Published: March 13, 2024
In
the
rapidly
developing
field
of
photovoltaics,
organic–inorganic
metal
halide
perovskites
are
outstanding
for
their
exceptional
power
conversion
efficiencies
(PCE),
exceeding
26%.
However,
full
potential
these
materials
is
often
undermined
by
prevalence
defects
within
structure
and
at
grain
surfaces,
leading
to
significant
nonradiative
recombination
losses.
To
meet
this
critical
challenge,
study
introduces
a
novel
strategy
involving
pyrrolidinium
derivative
tetrafluoroborate
ionic
liquid,
specifically
2‐pyrrolidin‐1‐ium‐1‐ethylammonium
(PyE(BF
4
)
2
),
as
an
additive
in
perovskite
precursor.
This
approach
aims
meticulously
control
crystallization
processes
effectively
passivate
on
surface
boundaries
perovskite.
The
formation
N─H…I
−
hydrogen
bonds
strong
interactions,
PyE(BF
not
only
stabilizes
[PbI
6
]
4−
framework
but
also
optimizes
valence
band
alignment
with
hole
transport
layer.
Empirical
results
demonstrate
that
solar
cells
modified
have
achieved
notable
PCE
23.80%
remarkable
stability
1300
h
under
standard
testing
protocols
(ISOS‐V‐1).
findings
emphasize
transformative
multifunctional
liquids
enhancing
performance
durability
perovskite‐based
photovoltaic
devices,
marking
step
forward
pursuing
sustainable
efficient
energy
solutions.
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
2(1)
Published: April 29, 2025
Abstract
Labor-intensive,
trial-and-error
methods
are
frequently
employed
for
modifying
the
perovskite
surface
to
mitigate
trap
defects.
There
is
an
urgent
need
rationally
designed
and
efficient
molecular
passivators.
To
address
performance
stability
challenges
caused
by
defects
in
polycrystalline
perovskite,
we
have
tailored
passivation
molecules,
4-(trifluoromethyl)benzoic
anhydride
(TFBA),
ethyl
4-(trifluoromethyl)benzoate
(TFB),
acid
(PTF),
minimize
interfacial
energy
loss
modulate
bandgap
alignment
achieving
solar
cells
(PSCs).
These
molecules
could
target
defects,
particularly
Pb–I
antisite
with
–COOH
trifluoromethyl
functional
groups
at
edges.
Among
them,
PTF
exhibited
superior
coordinating
its
carboxyl
group
Pb
2+
,
effectively
suppressing
non-radiative
recombination.
Additionally,
fluorine
sites
these
corrected
lattice
distortions
stabilized
structure
through
hydrogen
bonding
MA/FA
cations,
reducing
ion
migration,
enhancing
moisture
resistance.
As
a
result,
PTF-modified
PSCs
achieved
efficiency
of
25.57%
maintained
over
85%
their
initial
after
1
600
h
aging.
This
study
provides
clear
pathway
optimizing
strategies
rational
design.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 19, 2024
Abstract
The
commercialization
of
perovskite
solar
cells
(PSCs),
as
an
emerging
industry,
still
faces
competition
from
other
renewable
energy
technologies
in
the
market.
It
is
essential
to
ensure
that
PSCs
are
durable
and
stable
high‐temperature
environments
order
meet
varied
market
demands
hot
regions
or
seasons.
influence
high
temperatures
on
complex,
encompassing
factors
such
lattice
strain,
crystal
phase
changes,
creation
defects,
ion
movement.
Furthermore,
it
intensifies
vibrations
phonon
scattering,
which
turn
impacts
migration
rate
charge
carriers.
This
review
focuses
durability
organic–inorganic
hybrid
under
temperatures.
begins
by
analyzing
impact
external
temperature
variations
internal
dynamics
PSCs.
Subsequently,
outlines
various
mechanisms
provided
different
functional
molecules,
applied
interface
stabilization,
grain
boundary
passivation,
growth
control,
electrode
protection,
development
new
hole
transport
layers,
enhance
thermal
stability
Additionally,
machine
learning
(ML)
discussed
for
predicting
structure
stability,
operational
material
screening,
with
a
focus
potential
deep
explainable
artifical
intelligence
(AI)
techniques
Solar RRL,
Journal Year:
2024,
Volume and Issue:
8(8)
Published: March 13, 2024
In
the
rapidly
developing
field
of
photovoltaics,
organic–inorganic
metal
halide
perovskites
are
outstanding
for
their
exceptional
power
conversion
efficiencies
(PCE),
exceeding
26%.
However,
full
potential
these
materials
is
often
undermined
by
prevalence
defects
within
structure
and
at
grain
surfaces,
leading
to
significant
nonradiative
recombination
losses.
To
meet
this
critical
challenge,
study
introduces
a
novel
strategy
involving
pyrrolidinium
derivative
tetrafluoroborate
ionic
liquid,
specifically
2‐pyrrolidin‐1‐ium‐1‐ethylammonium
(PyE(BF
4
)
2
),
as
an
additive
in
perovskite
precursor.
This
approach
aims
meticulously
control
crystallization
processes
effectively
passivate
on
surface
boundaries
perovskite.
The
formation
N─H…I
−
hydrogen
bonds
strong
interactions,
PyE(BF
not
only
stabilizes
[PbI
6
]
4−
framework
but
also
optimizes
valence
band
alignment
with
hole
transport
layer.
Empirical
results
demonstrate
that
solar
cells
modified
have
achieved
notable
PCE
23.80%
remarkable
stability
1300
h
under
standard
testing
protocols
(ISOS‐V‐1).
findings
emphasize
transformative
multifunctional
liquids
enhancing
performance
durability
perovskite‐based
photovoltaic
devices,
marking
step
forward
pursuing
sustainable
efficient
energy
solutions.
