ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(46), С. 17007 - 17017
Опубликована: Ноя. 8, 2024
Ion
migration
can
lead
to
detrimental
consequences,
including
hysteresis
effects,
interfacial
reactions,
etc.,
which
degrades
the
stability
and
efficiency
of
perovskite
solar
cells
(PSCs).
Ionic
liquid
has
been
introduced
enhance
PSCs,
yet
detailed
mechanism
is
still
under
debate.
To
address
question,
in
situ
wide-field
photoluminescence
microscopy
employed
characterize
ion
migration,
found
more
obviously
suppressed
at
buried
interface
than
surface
after
1-butyl-3-methylimidazolium
tetrafluoroborate
(BMIMBF4)
modification.
The
experimental
results
show
that
BF4–
distributed
mainly
interface,
while
BMIM
exists
throughout
film
accumulates
surface.
suppress
through
filling
iodine
vacancies
passivating
undercoordinated
Pb2+,
thus
reducing
defect
density.
Meanwhile,
BMIM+
passivate
(VPb)
Pb2+
across
whole
film,
effectively
decreasing
Pb-related
defects.
Consequently,
PSCs
incorporated
with
BMIMBF4
exhibit
enhanced
power
conversion
stability.
This
study
provides
a
comprehensive
understanding
role
ionic
liquids
interfaces
its
impact
on
performance
PSCs.
Advanced Energy Materials,
Год журнала:
2023,
Номер
14(6)
Опубликована: Дек. 21, 2023
Abstract
The
field
of
solar
systems
has
undergone
rapid
development
with
the
emergence
special
material,
perovskite.
Perovskite's
unique
mechanism,
defect
tolerance,
enabled
perovskite
cells
(PSCs)
to
achieve
high
power
conversion
efficiencies
(PCEs),
and
many
studies
on
this
subject
have
been
conducted.
“Defect
tolerance”
indicates
that
defects
in
are
primarily
generated
at
shallow‐energy
level
do
not
occur
through
nonradiative
recombination.
However,
also
well
formed
films
shallow
can
transform
into
deep
traps,
leading
long‐term
stability
issues.
Therefore,
controlling
is
essential
for
developing
PSCs
PCEs.
causes
diverse,
patterns
differ
considerably,
particularly
depending
location
PSCs.
In
review,
will
be
discussed
review
several
methods
passivating
them
different.
Advanced Materials,
Год журнала:
2024,
Номер
36(31)
Опубликована: Апрель 11, 2024
Abstract
While
significant
efforts
in
surface
engineering
have
been
devoted
to
the
conversion
process
of
lead
iodide
(PbI
2
)
into
perovskite
and
top
layer
with
remarkable
progress,
exploration
residual
PbI
clusters
hidden
bottom
on
limited.
In
this
work,
a
new
strategy
involving
1‐butyl‐3‐methylimidazolium
acetate
(BMIMAc)
ionic
liquid
(IL)
additives
is
developed
it
found
that
both
cations
anions
ILs
can
interact
components,
thereby
regulating
crystallization
diminishing
residue
as
well
filling
vacancies.
The
introduction
BMIMAc
induces
formation
uniform
porous
film,
facilitating
better
penetration
second‐step
organic
salt
fostering
more
extensive
interaction
between
salt.
Surprisingly,
oversized
at
completely
diminish.
addition,
advanced
depth
analysis
techniques
including
depth‐resolved
grazing‐incidence
wide‐angle
X‐ray
scattering
(GIWAXS)
thinning
technology
are
employed
for
comprehensive
understanding
reduction
.
Leveraging
effective
management
regulation
process,
champion
devices
achieve
power
efficiency
(PCE)
25.06%
long‐term
stability.
ABSTRACT
Perovskite
solar
cells
(PSCs)
have
attracted
considerable
attention
due
to
their
potential
for
high‐efficiency
conversion
and
cost‐effective
fabrication.
Although
the
fabrication
of
perovskite
films
in
ambient
air
offers
environmental
cost
advantages,
presence
water
vapor
oxygen
may
induce
instability
these
films,
thereby
affecting
device
performance.
This
review
aims
comprehensively
explore
recent
advancements
PSCs
air,
while
investigating
various
factors
contributing
degradation.
Addressing
challenges,
diverse
strategies
are
outlined,
encompassing
compositional,
additive,
solvent,
interface
engineering
enhance
performance
stability
fabricated
under
air.
To
facilitate
commercialization
PSCs,
this
paper
summarizes
several
widely
employed
methods
large‐scale
manufacturing
PSCs.
Through
review,
we
aim
offer
some
invaluable
insights
guidance
trajectory
as
well
pros
cons
widespread
applications
field
renewable
energy.
Abstract
Metal–organic
frameworks
(MOFs)
have
been
investigated
recently
in
perovskite
photovoltaics
owing
to
their
potential
boost
optoelectronic
performance
and
device
stability.
However,
the
impact
of
variations
MOF
side
chain
on
characteristics
mechanism
MOF/perovskite
film
formation
remains
unclear.
In
this
study,
three
nanoscale
thiol‐functionalized
UiO‐66‐type
Zr‐based
MOFs
(UiO‐66‐(SH)
2
,
UiO‐66‐MSA,
UiO‐66‐DMSA)
are
systematically
employed
examined
solar
cells
(PSCs).
Among
these
MOFs,
UiO‐66‐(SH)
with
its
rigid
organic
ligands,
exhibited
a
strong
interaction
materials
more
efficient
suppression
vacancy
defects.
More
importantly,
A
detailed
in‐depth
discussion
is
provided
‐assisted
upon
situ
GIWAXS
performed
during
annealing
process.
The
incorporation
additives
substantially
facilitates
conversion
PbI
into
phase,
prolongs
duration
stage
I,
induces
delayed
phase
transformation
pathway.
Consequently,
demonstrates
reduced
defect
density
superior
properties
optimized
power
efficiency
24.09%
enhanced
long‐term
stability
under
ambient
environment
continuous
light
illumination
conditions.
This
study
acts
as
helpful
design
guide
for
desired
structures,
enabling
further
advancements
devices.
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
12(29), С. 10837 - 10856
Опубликована: Янв. 1, 2024
While
perovskite
solar
cells
(PSCs)
have
achieved
remarkable
power
conversion
efficiencies
(PCEs)
exceeding
26.1%,
significant
challenges
remain
in
enhancing
their
efficiency
and
stability
for
commercial
viability.
