Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(10)
Published: Jan. 7, 2024
Abstract
The
pursuit
of
commercializing
perovskite
photovoltaics
is
driving
the
development
various
scalable
crystallization
techniques.
Among
them,
gas
quenching
a
promising
approach
for
high‐throughput
deposition
films.
However,
films
prepared
by
gas‐quenching
assisted
blade
coating
are
susceptible
to
formation
pinholes
and
frequently
show
inferior
crystallinity
if
interplay
between
film
coating,
drying,
kinetics
not
fully
optimized.
That
arguably
requires
thorough
understanding
how
single
processing
steps
influence
printed
Here,
in
situ
optical
spectroscopies
integrated
into
doctor‐blading
setup
that
allows
real‐time
monitor
during
process.
It
found
essential
role
treatment
achieving
smooth
compact
controlling
nucleation
rate.
Moreover,
with
assistance
phase‐field
simulations,
excessive
methylammonium
iodide
revealed
increase
grain
size
accelerating
crystal
growth
These
results
tailored
control
rate
critical
optimal
quality,
leading
solar
cells
champion
power
conversion
efficiency
19.50%
mini
modules
15.28%
achieved.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(8), P. 2800 - 2814
Published: Jan. 1, 2024
Key
advances
on
triple-junction
perovskite–perovskite–Si
solar
cells
with
an
unprecedented
efficiency
of
24.4%
and
enhanced
long-term
thermal
stability
are
reported
via
the
development
high-performance
middle
perovskite
cell.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
Abstract
Halide
perovskites
hold
great
potential
in
developing
next‐generation
X‐ray
detectors.
However,
preparing
high‐quality
and
thick
perovskite
films
a
way
compatible
with
thin‐film
transistor
(TFT)‐integrated
flat‐panel
detectors
(XFPDs)
remains
challenging.
Here,
by
engineering
ink
effective
printability
shape
fidelity,
direct
writing
(DIW)
is
developed
as
new
approach
to
printing
unique
single‐crystal‐assembled
(SCAP)
film.
In
contrast
polycrystalline
grains
consisting
of
randomly
orientated
crystal
domains,
the
SCAP
made
tightly
packed
crystals
well‐defined
facets,
showing
3–4
orders
magnitude
lower
trap
density
(4.48
×
10
12
cm
−3
).
Consequently,
offers
state‐of‐the‐art
detection
performance
(sensitivity‐to‐dark
current
ratio:
1.26
11
µC
Gy
air
−1
A
),
low
limit
(114.2
nGy
s
negligible
baseline
drift
(0.27
fA
V
Furthermore,
XFPD
based
on
64
pixelated
TFT
array
realizes
high‐resolution
digital
radiography,
opening
avenue
for
further
development
The Journal of Physical Chemistry Letters,
Journal Year:
2022,
Volume and Issue:
13(7), P. 1845 - 1854
Published: Feb. 17, 2022
Because
of
the
narrow
bandgap
and
superior
thermal
stability,
FAPbI3
is
considered
most
promising
perovskite
material
for
high-performance
single-junction
PSCs.
Nevertheless,
metastable
properties
photoactive
α-FAPbI3
becomes
a
primary
obstacle
development
FA-based
The
main
reasons
instability
are
rotation
disorder
FA
cation
large
anisotropic
lattice
strain,
which
lead
to
high
formation
energy
α-FAPbI3.
In
this
Perspective,
we
review
various
strategies
preparing
phase-pure
α-FAPbI3,
such
as
engineering,
intermediate
phase
dimensionality
engineering.
These
can
stabilize
by
reducing
system
energy,
regulating
transition
process
barrier,
reinforcing
structure,
passivating
film
defects.
addition,
investigate
fundamental
challenges
PSCs
propose
our
perspective
on
high-quality
high-purity
Materials Horizons,
Journal Year:
2022,
Volume and Issue:
10(1), P. 13 - 40
Published: Oct. 24, 2022
Manipulating
the
crystal
orientation
plays
a
vital
role
in
fine-tuning
facet-dependent
properties
of
perovskite,
this
review
presents
basic
strategies
and
oriented
growth
mechanisms
for
engineering
perovskite
solar
cells.
Nano-Micro Letters,
Journal Year:
2022,
Volume and Issue:
14(1)
Published: Aug. 16, 2022
Abstract
The
complete
elimination
of
methylammonium
(MA)
cations
in
Sn–Pb
composites
can
extend
their
light
and
thermal
stabilities.
Unfortunately,
MA-free
alloyed
perovskite
thin
films
suffer
from
wrinkled
surfaces
poor
crystallization,
due
to
the
coexistence
mixed
intermediate
phases.
Here,
we
report
an
additive
strategy
for
finely
regulating
impurities
phase
Cs
0.25
FA
0.75
Pb
0.6
Sn
0.4
I
3
and,
thereby,
obtaining
high-performance
solar
cells.
We
introduced
d
-homoserine
lactone
hydrochloride
(D-HLH)
form
hydrogen
bonds
strong
Pb–O/Sn–O
with
precursors,
thereby
weakening
incomplete
complexation
effect
between
polar
aprotic
solvents
(e.g.,
DMSO)
organic
(FAI)
or
inorganic
(CsI,
PbI
2
,
SnI
)
components,
balancing
nucleation
processes.
This
treatment
completely
transformed
phases
into
pure
preformed
nuclei
prior
annealing.
Besides,
this
D-HLH
substantially
inhibited
oxidation
2+
species.
generated
a
record
efficiency
21.61%,
V
oc
0.88
device,
23.82%
its
tandem
device.
unencapsulated
devices
displayed
impressive
stability
at
85
°C
300
h
much
improved
continuous
operation
MPP
120
h.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(17)
Published: Sept. 15, 2023
Multiple
cation-composited
perovskites
are
demonstrated
as
a
promising
approach
to
improving
the
performance
and
stability
of
perovskite
solar
cells
(PSCs).
However,
recipes
developed
for
fabricating
high-performance
in
laboratories
always
not
transferable
large-scale
production,
crystallization
is
highly
sensitive
processing
conditions.
Here,
using
an
situ
optical
method,
ambient
temperature
effect
on
process
multiple
investigated.
It
found
that
typical
solvent-coordinated
intermediate
phase
methylammonium
lead
iodide
(MAPbI
