Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 29, 2024
Tin
halide
perovskite
(THP)
has
emerged
as
a
promising
lead-free
material
for
high-performance
solar
cells,
attracting
significant
attention
their
potential
use
energy
conversion.
However,
the
rapid
crystallization
of
THP
due
to
its
high
Lewis
acidity
and
easy
oxidation
Sn2+
leads
poor
morphology
rampant
defects
in
resulting
films.
These
strongly
hamper
advances
efficiency
stability
cells.
Herein,
comprehensive
regulation
strategy
is
demonstrated
by
introducing
methyl
carbazate
(C2H6N2O2,
MeC)
regulate
kinetics
through
inter-molecular
interactions.
The
coordination
bonds
(O…Sn)
hydrogen
(N─H…O)
between
MeC
bridge
lattice
together,
helping
suppress
Sn2+,
meanwhile,
restraining
fast
precursor
solution,
enhancing
nucleation
sites.
More
importantly,
connection
can
reduce
deep-level
trap
state
defect
density,
significantly
non-radiative
recombination
improving
carrier
lifetime.
Consequently,
this
facile
offers
valuable
insights
into
allows
an
enhanced
power
conversion
from
10.43%
14.02%
be
achieved
with
good
stability.
Materials Futures,
Journal Year:
2024,
Volume and Issue:
3(2), P. 022102 - 022102
Published: April 24, 2024
Abstract
Perovskite
(PVK)
solar
cells
(PSCs)
have
garnered
considerable
research
interest
owing
to
their
cost-effectiveness
and
high
efficiency.
A
systematic
annual
review
of
the
on
PSCs
is
essential
for
gaining
a
comprehensive
understanding
current
trends.
Herein,
analysis
papers
reporting
key
findings
in
2023
was
conducted.
Based
results,
were
categorized
into
six
classifications,
including
regular
n–i–p
PSCs,
inverted
p–i–n
PVK-based
tandem
cells,
PVK
modules,
device
stability,
lead
toxicity
green
solvents.
Subsequently,
detailed
overview
summary
advancements
within
each
classification
presented.
Overall,
this
serves
as
valuable
resource
guiding
future
endeavors
field
PSCs.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 6, 2025
Effective
modifications
for
the
buried
interface
between
self-assembled
monolayers
(SAMs)
and
perovskites
are
vital
development
of
efficient,
stable
inverted
perovskite
solar
cells
(PSCs)
their
tandem
photovoltaics.
Herein,
an
ionic-liquid-SAM
hybrid
strategy
is
developed
to
synergistically
optimize
uniformity
SAMs
crystallization
above.
Specifically,
ionic
liquid
1-butyl-3-methyl-1H-imidazol-3-iumbis((trifluoromethyl)sulfonyl)amide
(BMIMTFSI)
incorporated
into
SAM
solution,
enabling
reduced
surface
roughness,
improved
wettability,
a
more
evenly
distributed
potential
film.
Leveraging
this
optimized
substrate,
favorable
growth
high-quality
crystals
achieved.
Furthermore,
introduced
functional
ions
readily
bond
with
perovskites,
effectively
passivating
undesirable
cation
or
halide
vacancies
near
interface.
Remarkably,
high
power
conversion
efficiencies
(PCEs)
25.68%
22.53%
obtained
normal-bandgap
(≈1.55
eV)
wide-bandgap
(WBG)
(≈1.66
PSCs
along
operational
stability.
Additionally,
champion
PCE
19.50%
achieved
semitransparent
WBG
PSCs,
further
delivering
impressive
28.34%
integrated
four-terminal
photovoltaics
when
combined
CuInGaSe2
cells.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(16)
Published: Feb. 19, 2024
Abstract
Formamidinium
lead
iodide
(FAPbI
3
)
represents
an
optimal
absorber
material
in
perovskite
solar
cells
(PSCs),
while
the
application
of
FAPbI
inverted‐structured
PSCs
has
yet
to
be
successful,
mainly
owing
its
inferior
film‐forming
on
hydrophobic
or
defective
hole‐transporting
substrates.
Herein,
we
report
a
substantial
improvement
‐based
inverted
PSCs,
which
is
realized
by
multifunctional
amphiphilic
molecular
hole‐transporter,
(2‐(4‐(10
H
‐phenothiazin‐10‐yl)phenyl)‐1‐cyanovinyl)phosphonic
acid
(PTZ−CPA).
The
phenothiazine
(PTZ)
based
PTZ−CPA,
carrying
cyanovinyl
phosphonic
(CPA)
group,
forms
superwetting
hole‐selective
underlayer
that
enables
facile
deposition
high‐quality
thin
films.
Compared
previously
established
carbazole‐based
(2‐(3,6‐dimethoxy‐9
‐carbazol‐9‐yl)ethyl)phosphonic
(MeO−2PACz),
crystallinity
enhanced
and
electronic
defects
are
passivated
PTZ−CPA
more
effectively,
resulting
remarkable
increases
photoluminescence
quantum
yield
(four‐fold)
Shockley‐Read‐Hall
lifetime
(eight‐fold).
Moreover,
shows
larger
dipole
moment
improved
energy
level
alignment
with
,
benefiting
interfacial
hole‐collection.
Consequently,
achieve
unprecedented
efficiency
25.35
%
under
simulated
air
mass
1.5
(AM1.5)
sunlight.
device
commendable
long‐term
stability,
maintaining
over
90
initial
after
continuous
operation
at
40
°C
for
2000
hours.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 30, 2024
Abstract
The
inherent
defects
(lead
iodide
inversion
and
iodine
vacancy)
in
perovskites
cause
non‐radiative
recombination
there
is
also
ion
migration,
decreasing
the
efficiency
stability
of
perovskite
devices.
Eliminating
these
critical
for
achieving
high‐efficiency
solar
cells.
Herein,
an
organic
molecule
with
multiple
active
sites
(4,7‐bromo‐5,6‐fluoro‐2,1,3‐phenylpropyl
thiadiazole,
M4)
introduced
to
modify
upper
interface
perovskites.
When
M4
interacts
surface,
bromine
(Br)
site
lead
(Pb)
at
surface
repair
atomic
vacancy
defects.
fluorine
(F)
Pb
correct
octahedral
crystal
lattice
distortions
eliminate
I
Additionally,
sulfur–iodine
(S–I)
interactions
reduce
I–I
dimerization
It
calculated
that
energy
level
aligns
band
gap,
promoting
charge
transfer.
As
a
result,
devices
achieve
25.1%,
stabilized
power
output
(SPO)
25.0%,
voltage
1.19
V,
fill
factor
85.2%.
device
retains
95%
its
initial
after
2000
h
ageing
nitrogen
atmosphere.
Thus,
multi‐point
cooperative
passivation
provides
effective
method
improve
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 6, 2024
Abstract
Recently,
the
inverted
CsPbI
3
perovskite
solar
cells
(PSCs)
have
attracted
extensive
attentions
due
to
their
potential
combine
with
silicon
for
tandem
devices
theoretical
power
conversion
efficiency
(PCE)
of
44%.
However,
reported
self‐assembled
molecules
(SAMs)
as
hole
selected
layer
PSCs
poor
wettability
and
serious
agglomeration,
which
greatly
limits
stability
PSCs.
To
address
above
problem,
niobium
pentachloride
(NCL)
is
applied
prevent
SAMs
agglomeration
a
homogenous
film
hydrophilic
surface.
The
optimized
surface
facilitates
deposition
cesium
lead
triiodide
(CsPbI
)film
an
enhanced
referred
orientation,
suppressed
defects,
released
stress.
Consequently,
NCL‐treated
achieved
champion
PCE
21.24%,
highest
value
all‐inorganic
device
maintained
97.61%
initial
after
1000
h
storage
in
air,
92.27%
tracking
at
maximum
point
(MPP).
Advanced Theory and Simulations,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 8, 2025
Abstract
This
study
explores
advancements
in
tin
(Sn)‐based
perovskite
solar
cells
(PSCs),
which
face
challenges
compared
to
lead‐based
PSCs
due
rapid
crystallization
kinetics
and
high
defect
densities
Sn
films.
To
address
these
limitations,
a
synergistic
strategy
involving
benzylamine
fluorine
incorporation
is
employed
enhance
device
performance.
Perovskite
materials
such
as
fluorobenzylammonium
iodide
(FBZAI),
2‐fluorophenylethylammonium
(2‐FPEAI),
4‐fluorooctylammonium
(FOEI)
engineered
formamidinium
(FASnI
3
)
are
evaluated.
Key
photovoltaic
parameters,
including
fill
factor
(FF),
open‐circuit
voltage
(Voc),
short‐circuit
current
density
(Jsc),
power
conversion
efficiency
(PCE),
analyzed.
Comprehensive
investigations
examine
the
impact
of
absorber
layer
thickness,
density,
bandgap
tuning,
temperature,
doping
concentration.
The
2‐FPEAI‐based
with
spiro‐OMeTAD
(2,2′,7,7′‐tetrakis(N,N‐di‐p‐methoxyphenylamino)‐9,9'‐spirobifluorene)/2‐FPEAI/C60
additives
achieved
PCE
14.65%,
FF
60.19%,
Jsc
24.325
mA/cm
2
,
Voc
1.0005
V.
FOEI‐based
devices
CuI
(copper
iodide)/FOEI/C60
delivered
18.51%,
75.33%,
27.31
0.899
V,
while
FBZAI
showed
16.13%,
66.28%,
26.47
0.8925
These
findings
highlight
potential
lead‐free
for
sustainable,
high‐performance
applications.
