ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 11, 2024
Four
solvents
from
the
glycol
ether
(GE)
family
were
evaluated
as
safer
alternatives
to
highly
toxic
2-methoxyethanol
(2ME)
used
for
fabrication
of
perovskite
solar
cells
(PSCs).
A
self-quenching
process
by
spin-coating
acetonitrile
(ACN)-based
ink
7
s
was
developed.
The
influence
ACN:GE
ratio
on
coverage
layers
and
cell
efficiency
investigated
find
that
with
8:1
four
studied
here
can
produce
PSCs
an
similar
2ME
therefore
be
a
replacement
latter.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(17), P. 6256 - 6267
Published: Jan. 1, 2024
Crystallization
kinetics
modulation
of
high-performance
flexible
perovskite
photovoltaics
achieving
autonomous
energy
generation
under
outdoor
settings.
Science,
Journal Year:
2025,
Volume and Issue:
387(6731), P. 284 - 290
Published: Jan. 16, 2025
Formamidinium
lead
triiodide
(FAPbI
3
)
is
considered
the
most
promising
composition
for
high-performing
single-junction
solar
cells.
However,
nonalloyed
α-FAPbI
metastable
with
respect
to
photoinactive
δ-phase.
We
have
developed
a
kinetic
modulation
strategy
fabricate
high-quality
and
stable
films,
assisted
by
cogenetic
volatile
iodine
intercalation
decalation.
The
of
facilitated
formation
corner-sharing
Pb-I
framework
building
blocks
reduced
barrier
formation,
whereas
decalation
improved
final
perovskite
film
quality
in
terms
purity
overall
homogeneity.
Solar
cells
based
on
this
(free
other
extrinsic
ions)
achieved
power
conversion
efficiency
>24%.
devices
also
exhibited
excellent
durability,
retaining
99%
their
original
after
operating
more
than
1100
hours
at
85°
±
5°C
under
illumination.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
Abstract
Perovskite
solar
cells
(PSCs)
have
gained
significant
attention
for
their
high
efficiency,
low
cost,
and
versatile
application
possibilities,
which
are
expected
to
play
a
critical
role
in
shaping
the
future
of
photovoltaics
(PV)
markets.
However,
power
conversion
efficiency
(PCE)
stability
large‐area
PSCs
still
cannot
meet
industrialization
requirements,
mainly
associated
with
unsatisfactory
quality
perovskite
films.
This
review
first
identifies
factors
contributing
film
difference
between
small‐area
films,
such
as
solvent
evaporation
process,
reaction
crystallization
kinetics,
etc.
results
undesired
perovskites,
e.g.
inhomogeneity
terms
morphology,
composition,
phase,
crystal
size,
orientation.
Solvent
systems
customed
different
scalable
preparation
process
based
on
volatility,
solubility,
coordination
ability
perovskite.
Furthermore,
various
additives
incorporated
further
regulate
surface
tension
change
intermediate
phase
evolution.
Finally,
we
transition
from
level
device
explore
current
advancements
challenges
related
PCE
commercialization
process.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(46), P. 32105 - 32116
Published: Nov. 8, 2024
Chemical
additives
play
a
critical
role
in
the
crystallization
kinetics
and
film
morphology
of
perovskite
solar
cells
(pero-SCs),
thus
affecting
device
performance
stability.
Especially,
carboxylic
acids
their
congeners
with
-COOH
group
can
effectively
serve
as
ligands
to
fortify
structural
integrity
mitigate
risk
lead
efflux.
However,
direct
addition
into
precursor
solution
could
retard
during
formation
due
strong
coordination.
Here,
we
present
novel
approach
situ
functional
conversion
using
Bis(2,5-dioxopyrrolidin-1-yl)
4,7,10,13-tetraoxahexadecanedioate
(Bis-PEG4-NHS
ester)
an
additive
antisolvent,
which
underwent
transformation
from
-COOR
annealing
process
through
hydrolysis
reaction
Bis-PEG4-NHS
ester.
The
corresponding
hydrolysates
exhibit
enhanced
interactions
PbI
The Journal of Physical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 754 - 765
Published: Jan. 13, 2025
A
significant
barrier
to
the
commercialization
of
solution-processed
perovskite
solar
cells
(PSCs)
is
chemical
instability
components
in
precursor
solutions
under
ambient
conditions.
This
leads
solution
aging,
which
subsequently
diminishes
quality
and
reproducibility
resulting
PSCs.
Inspired
by
recent
published
works,
focused
on
deprotonation
organic
cations,
oxidation
iodide,
formation
undesired
byproducts,
we
here
systematically
summarize
provide
an
outlook
research
directions
perspectives
origin
aging
countermeasures,
such
as
using
stabilizing
additives,
redox
shuttles,
Schiff
base
reactions,
green
solvents.
We
are
aiming
insight
into
potential
paths
for
achieving
reproducible
efficient
PSCs
with
high
operational
stability.
Methylammonium
chloride
(MACl)
additive
is
almost
irreplaceable
in
high-performance
formamidinium
(FA)
perovskite
photovoltaics.
However,
the
byproduct
of
methyl
(MFA+)
from
reaction
MA0
and
FA
damages
compositional
purity
phase
stability
α-FAPbI3.
The
addition
iodine
(I2)
to
FAPbI3
precursor
has
been
reported
inhibit
formation
MFA+.
Here,
we
systematically
investigate
effect
MAI
on
films
devices
by
using
replace
MACl
I2.
results
demonstrate
that
produces
more
I3-
precursor,
which
inhibits
between
MA
thus
blocks
Meanwhile,
MFA+
reduced
due
delayed
evaporation
caused
its
strong
interaction
with
I3-,
facilitating
growth
α-FAPbI3
an
improved
bottom
morphology.
It
eliminates
unreacted
PbI2,
forming
a
homogenized
phase,
facilitates
ordered
along
(111)
facet,
enhancing
charge
transport
increasing
open-circuit
voltage
(VOC).
optimized
device
shows
2%
improvement
PCE,
VOC
1.050
1.103
V.
Additionally,
target
retains
97%
initial
performance
after
5495
min
operation
under
maximum
power
point
tracking,
compared
82.3%
2000
for
control
device.
This
work
provides
insights
into
inhibiting
byproducts
induced
MA-FA
side
following
introduction
MACl.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 14, 2025
Abstract
Fabricating
high-performance
perovskite
solar
cells
(PSCs)
with
solution
processing
is
conducive
to
low-cost
commercial
production,
it
therefore
rather
critical
stabilize
in
both
and
solid
phases.
For
this
purpose,
the
speed-up
ageing
of
air
was
systematically
studied
its
severe
spontaneous
degradation
observed.
To
address
issue,
we
introduce
4-(trifluoromethyl)phenylhydrazine
(TFPH)
modify
solution,
which
presented
enhanced
storage
stability.
Consequently,
when
modified
used
prepare
PSCs,
obtained
much
improved
well
consistent
power
conversion
efficiencies
(PCEs,
~
26.0%)
regardless
time,
as
excellent
operational
stability,
maintains
PCE
≥
92%
for
1830
hours.
These
remarkable
results
are
attributed
multiple
functions
TFPH:
a)
inhibiting
perovskite;
b)
favoring
oriented
crystallization;
c)
reducing
trapping
density,
etc.
This
work
substantially
assists
understanding
modification
The
performance
stability
consistency
on
TFPH
device
batches
great
significance
production
PSCs.
Journal of Materials Chemistry A,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
work
presents
a
systematic
study
of
how
the
size
C
0
–C
4
alkylammonium
chloride
additive
directs
crystallization
pathway
in
antisolvent-free
FAPbI
3
films.
We
find
that
larger
cations
promote
intermediate
formation
hexagonal
polytypes,
correlating
with
enhanced
film
crystallinity.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 7, 2025
Abstract
The
instability
of
perovskite
precursor
solution
induced
by
deprotonation
organic
cations
and
oxidation
iodide
ions
substantially
deteriorates
the
reproducibility
reliability
photovoltaic
performance
solar
cells
(PSCs).
above
decomposition
reactions
can
be
conquered
via
synergistic
engineering
functional
groups.
However,
how
spatial
conformation
type
weak
acid
groups
impact
stability
remains
to
investigated.
Herein,
it
is
uncovered
that
position
on
benzene
remarkably
influence
dissociation
constant
(p
K
a
)
thus
inks.
p
plays
decisive
role
in
suppressing
following
amine‐cation
addition‐elimination
reaction.
4‐hydrazinobenzenesulfonic
(4‐HBSA)
with
lowest
optimal
stabilizing
inks
mitigating
nonradiative
recombination
through
defect
passivation.
This
breakthrough
enables
inverted
PSCs
deliver
power
conversion
efficiency
(PCE)
26.79%
(certified
26.36%,
highest
PCE
value
for
prepared
ambient
conditions)
using
vacuum
flash
evaporation
technology.
modulated
PSC
could
maintain
92%
its
initial
after
2000
h
continuous
maximum
point
tracking.
