Perovskite
solar
cells
(PSCs)
have
garnered
significant
attention
due
to
their
tunable
bandgap,
superior
charge
carrier
properties,
and
easy
fabrication
processes,
making
them
highly
efficient
energy
conversion
devices.
Despite
these
advantages,
nonradiative
recombination
defects
in
the
perovskite
layer
continues
limit
performance.
This
study
addresses
this
issue
by
introducing
1‐CarboxyMethyl‐3‐MethylImidazolium
chloride
(ImAcCl)
into
precursor
solution
enhance
film
quality
suppress
defect‐induced
recombination.
The
carboxylate
groups
(CO)
hydrogen
donors
(NH)
ImAcCl
form
coordination
bonds,
helping
reduce
defect
density
of
film.
Additive
improves
crystallinity,
reduces
surface
roughness,
enhances
transport,
leading
higher
photovoltaic
With
additive,
power
efficiency
short‐circuit
current
PSCs
significantly
improve
23.92%
25.35
mA
cm
−2
,
with
a
notable
reduction
losses.
highlights
potential
as
an
effective
additive
for
passivation
PSCs,
offering
promising
pathway
toward
further
improvements
next‐generation
cells.
Materials Horizons,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Quantum
dots
have
garnered
significant
interest
in
perovskite
solar
cells
(PSCs)
due
to
their
stable
chemical
properties,
high
carrier
mobility,
and
unique
features
such
as
multiple
exciton
generation
excellent
optoelectronic
characteristics
resulting
from
quantum
confinement
effects.
This
review
explores
dot
properties
applications
photoelectronic
devices,
including
synthesis
deposition
processes.
sets
the
stage
for
discussing
diverse
roles
transport,
absorber,
interfacial
layers
of
PSCs.
We
thoroughly
examine
advances
defect
passivation,
energy
band
alignment,
crystallinity,
device
stability,
broader
light
absorption.
In
particular,
novel
approaches
enhance
photoelectric
conversion
efficiency
(PCE)
dot-enhanced
are
highlighted.
Lastly,
based
on
a
comprehensive
overview,
we
provide
forward-looking
outlook
advanced
fabrication
its
impact
enhancing
photovoltaic
performance
cells.
offers
insights
into
fundamental
mechanisms
that
endorse
improved
PSC
performance,
paving
way
further
development
dot-integrated
The
premature
reaction
of
PbI
2
with
organic
cations
in
perovskite
(PVK)
precursor
solutions
often
leads
to
compromised
film
quality.
To
mitigate
this,
the
ionic
liquid
(IL)
pyridinium
trifluoromethanesulfonate
is
introduced
into
solution.
strong
interaction
between
and
promotes
formation
nucleation
clusters,
effectively
lowering
barrier
regulating
crystallization
perovskite,
resulting
high‐quality,
homogeneous
PVK
films.
In
situ
characterization
shows
that
prenucleation
strategy
yields
films
an
average
grain
size
exceeding
1
μm.
hydrophobicity
trifluoromethyl
group
modulates
humidity,
facilitating
moist
environments.
This
contrast
typical
negative
effects
moisture,
which
can
induce
defects
structures.
As
a
result,
IL‐modified
solar
cells
(PSCs)
achieved
remarkable
power
conversion
efficiency
(PCE)
25.11%
under
ambient
conditions.
These
PSCs
retained
80.43%
their
initial
PCE
after
820
h
continuous
maximum
point
(MPP)
tracking.
Furthermore,
1000
exposure
air
30%–50%
relative
humidity
(RH)
at
room
temperature,
devices
maintained
87%
efficiency,
demonstrating
excellent
stability
for
long‐term
PSC
applications.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 8, 2025
Abstract
Wide‐bandgap
(WBG)
perovskite
solar
cells
(PSCs,
E
g
>
1.6
eV),
serving
as
the
top
cell
in
perovskite/silicon
tandem
(PSTSCs),
play
an
indispensable
role
absorbing
high
energy
photons
and
increasing
overall
efficiency.
However,
WBG
PSCs
often
suffer
from
severe
light‐induced
phase
segregation
significant
non‐radiative
recombination
losses
due
to
uncontrolled
rapid
crystallization.
Here,
polyfluoride
molecular
additives
are
designed
incorporated
via
(diacetoxyiodo)benzene
into
perovskite,
regulate
crystallization
process
of
films
thereby
reduce
defects.
(Bis(trifluoroacetoxy)iodo)benzene
(BTFIB)
can
passivate
uncoordinated
lead
ions
iodide
vacancies,
inhibiting
separation
caused
by
migration
reducing
loss
during
charge
transport.
Moreover,
introduction
BTFIB
effectively
moderate
film
formation
confer
excellent
hydrophobic
properties
films.
Consequently,
BTFIB‐based
1.67
eV‐WBG
devices
yield
a
champion
efficiency
23.05%
(certified
22.21%),
enabling
31.20%
four‐terminal
PSTSCs,
along
with
open‐circuit
voltage
1.246
V
fill
factor
85.34%.
After
2500
h
aging
glovebox,
device
retained
80%
its
initial
Energies,
Год журнала:
2025,
Номер
18(9), С. 2162 - 2162
Опубликована: Апрель 23, 2025
All-inorganic
CsPbX3
perovskites
have
significant
potential
for
applications
in
the
photovoltaic
field.
However,
during
their
preparation,
slow
evaporation
rate
of
precursor
solution
limits
extent
supersaturation,
leading
to
porous
perovskite
films
that
substantially
impair
device
performance.
Anti-solvent
engineering,
which
introduces
a
secondary
solvent
modulate
crystallization
process,
is
well
established
technique
research.
This
study
systematically
examines
effects
four
different
anti-solvents
on
and
corresponding
devices.
It
also
investigates
optimal
dipping-time
(trifluoromethyl)benzene
as
an
anti-solvent,
impact
varying
amounts
anti-solvent
additive
perfluorinated
acid.
The
optimized
devices
achieved
maximum
power
conversion
efficiency
12.68%.
Laser & Photonics Review,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 13, 2025
Abstract
Metal
halide
perovskite
materials
have
demonstrated
considerable
potential
as
gain
media
for
laser
diodes.
However,
current
research
on
lasers
predominantly
focuses
the
visible
light
region.
The
development
of
near‐infrared
with
emission
wavelengths
beyond
850
nm
remains
a
significant
challenge.
Herein,
fully
solution‐processed
tunable
spanning
from
872
to
948
are
presented.
By
controlling
crystallization
time
FASnI
3
films,
lasing
at
room
temperature
without
external
cavities
is
realized.
Through
modulating
dimensions
films
via
incorporation
large
cation
PEA
+
,
quasi‐2D
perovskites
adjustable
and
enhanced
stability
successfully
developed.
These
findings
provide
novel
approach
fabrication
lasers,
which
will
facilitate
advancement
lead‐free
lasers.
