Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
137(1)
Published: Oct. 15, 2024
Abstract
Tin
halide
perovskites
are
the
most
promising
candidate
materials
for
lead‐free
perovskite
solar
cells
(PSCs)
thanks
to
their
low
toxicity
and
ideal
band
gap
energies.
The
introduction
of
2D/3D
mixed
phases
in
tin‐based
PSCs
(TPSCs)
has
proven
be
effective
approach
improving
device
efficiency
stability.
However,
a
2D
phase
normally
shows
relatively
carrier
mobility,
which
will
unfavorable
transfer
devices.
In
this
work,
we
used
thiophene‐based
cation
2‐(thiophen‐3‐yl)ethan‐1‐aminium
(3‐TEA)
as
spacer
form
novel
TPSCs,
effect
on
performance
enhancement
comparison
with
other
cations
like
2‐(thiophen‐2‐yl)ethan‐1‐aminium
(2‐TEA)
benzene‐based
2‐phenylethan‐1‐aminium
(PEA).
Theoretical
calculations
reveal
that
3‐TEA
enables
compact
crystal
packing
[SnI
6
]
4−
octahedral
layers,
resulting
lowest
hole
mass
formation
energy
phase.
This
significantly
enhances
stability
by
facilitating
more
efficient
within
These
findings
indicate
well‐suited
high‐performance
TPSCs.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Aug. 12, 2024
Abstract
Tin-lead
halide
perovskites
with
a
bandgap
near
1.2
electron-volt
hold
great
promise
for
thin-film
photovoltaics.
However,
the
film
quality
of
solution-processed
Sn-Pb
is
compromised
by
asynchronous
crystallization
behavior
between
Sn
and
Pb
components,
where
Sn-based
tends
to
occur
faster
than
that
Pb.
Here
we
show
rapid
rooted
in
its
stereochemically
active
lone
pair,
which
impedes
coordination
metal
ion
Lewis
base
ligands
perovskite
precursor.
From
this
perspective,
introduce
noncovalent
binding
agent
targeting
open
site
coordinatively
unsaturated
Sn(II)
solvates,
thereby
synchronizing
kinetics
homogenizing
alloying.
The
resultant
single-junction
solar
cells
achieve
certified
power
conversion
efficiency
24.13
per
cent.
encapsulated
device
retains
90
cent
initial
after
795
h
maximum
point
operation
under
simulated
one-sun
illumination.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 25, 2024
Abstract
Perovskite
solar
cells
(PSCs)
are
exuding
unique
charm
in
the
third
generation
of
thin
film
cell
technology
with
high
power
conversion
efficiency
(PCE)
and
low
production
cost.
Recently,
lead‐free
tin
halide
perovskite
(TPSCs)
have
drawn
significant
research
interests
due
to
advantages
toxicity,
near‐ideal
bandgap
carrier
mobility.
However,
rapid
crystallization
easy
oxidation
limits
quality
final
performance
cells.
Therefore,
deposition
high‐quality
films
is
key
advance
TPSCs.
In
this
review,
classical
theory
solution
nucleation
crystal
growth
reviewed
correlated
practical
film.
The
physicochemical
properties
those
lead
counterpart
differences
process
carefully
compared.
On
basis,
recent
regulation
strategies
systematically
summarized
terms
management,
intermediate
phase
engineering
regulation.
addition,
preparation
mixed
tin‐lead
(Sn‐Pb)
PSCs
toward
also
discussed,
as
well
limiting
factors
for
device
stability.
Finally,
future
challenges
prospects
discussed
more
efficient
stable
Small,
Journal Year:
2024,
Volume and Issue:
20(43)
Published: July 6, 2024
2D-3D
tin-based
perovskites
are
considered
as
promising
candidates
for
achieving
efficient
lead-free
perovskite
solar
cells
(PSCs).
However,
the
existence
of
multiple
low-dimensional
phases
formed
during
film
preparation
hinders
transport
charge
carriers.
In
addition,
non-homogeneous
distribution
leads
to
lattice
distortion
and
increases
defect
density,
which
undesirable
stability
PSCs.
Here,
mixed
spacer
cations
[diethylamine
(DEA
Nanoscale,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
We
investigate
how
spacer
molecules
influence
the
properties
of
RP-type
2D
perovskites.
Modifying
aromatic
units
(PMA,
THMA,
FUMA)
reveals
that
small
adjustments
can
significantly
affect
dielectric
screening,
exciton
binding
energy,
and
structure.
Microstructures,
Journal Year:
2025,
Volume and Issue:
5(3)
Published: May 8, 2025
Tin
halide
perovskite
solar
cells
(THPSCs)
are
an
eco-friendly
alternative
to
lead
cells.
However,
defect
formation
hinders
their
commercialization.
Specifically,
the
oxidation
of
Sn2+
Sn4+
generates
defects,
which
increase
background
current
due
charge
recombination
and
consequently
degrade
device
performance.
This
review
explores
use
two-dimensional
(2D)
materials
additives
enhance
performance
stability
THPSCs.
2D
improve
transport,
passivate
induce
vertical
alignment,
structural
against
moisture.
Additives
optimize
film
morphology
interface
properties
by
promoting
grain
growth
reducing
density.
These
approaches
power
conversion
efficiency
THPSCs
up
15%,
demonstrating
commercial
potential.
The
synergistic
effects
analyzed,
critical
strategies
for
combined
utilization
suggested
develop
high-efficiency
stable
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
64(1)
Published: Oct. 15, 2024
Tin
halide
perovskites
are
the
most
promising
candidate
materials
for
lead-free
perovskite
solar
cells
(PSCs)
thanks
to
their
low
toxicity
and
ideal
band
gap
energies.
The
introduction
of
2D/3D
mixed
phases
in
tin-based
PSCs
(TPSCs)
has
proven
be
effective
approach
improving
device
efficiency
stability.
However,
a
2D
phase
normally
shows
relatively
carrier
mobility,
which
will
unfavorable
transfer
devices.
In
this
work,
we
used
thiophene-based
cation
2-(thiophen-3-yl)ethan-1-aminium
(3-TEA)
as
spacer
form
novel
TPSCs,
effect
on
performance
enhancement
comparison
with
other
cations
like
2-(thiophen-2-yl)ethan-1-aminium
(2-TEA)
benzene-based
2-phenylethan-1-aminium
(PEA).
Theoretical
calculations
reveal
that
3-TEA
enables
compact
crystal
packing
[SnI
