Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 29, 2024
Abstract
Near‐infrared
(NIR)
image
sensors
based
on
solution‐processed
thin
film
are
gaining
prominence
in
various
applications,
including
security
detection,
remote
sensing,
medical
imaging,
and
environmental
monitoring,
owing
to
superior
penetration
capabilities
of
NIR
light.
However,
the
reported
perovskite
suffer
from
limited
resolution
performance
due
poor
structural
integrity,
bioincompatibility,
constrained
response
wavelength
range
lead‐based
materials
employed.
In
this
study,
we
present
non‐toxic
quasi‐single‐crystal
(QSC)
CH(NH
2
)
SnI
3
(FASnI
films,
prepared
via
a
simple
spin‐coating
technique,
that
demonstrate
high
integrity
effective
response.
Through
series
situ
characterizations,
reveal
orderly
growth
mode
QSC‐FASnI
films
enables
more
oriented
crystal
with
reduced
trap
grain
boundaries.
Consequently,
self‐powered
photodetector
exhibited
large
detectivity
over
10
13
Jones
(780–890
nm).
Ultimately,
high‐resolution
64×64
(4096)
pixels
imaging
array,
exhibiting
photo
dark
non‐uniformity
value,
was
fabricated
thin‐film
transistors
(TFT)
backplanes,
enabling
ultraweak
light
(63
nW
cm
−2
real‐time
fingerprint
hidden
object
recognition.
This
work
pioneers
application
lead‐free
for
arrays.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 7, 2025
Abstract
engineering
has
emerged
as
a
promising
approach
to
improve
the
stability
and
power
conversion
efficiency
of
perovskite
solar
cells
(PSCs)
by
regulating
crystallization
or
defects.
Conventional
methods
typically
focus
on
single
functional
group,
leading
deficiency
in
simultaneously
addressing
above
mentioned
two
aspects.
Here,
an
innovative
using
(methylsulfonyl)phenyl)prop‐2‐en‐1‐amine
hydroiodide
(MSPPAI)
is
presented
concurrently
effectively
modulate
defect
passivation.
The
unique
structure
MSPPAI,
combining
rigid
conjugated
with
multisite
anchoring
groups
(─NH
2
─SO
─),
enables
precise
regulation
through
strong
interaction
components.
This
promotes
preferred
(100)
orientation
crystals,
enhances
grain
size,
thus
improves
film
quality.
Meanwhile,
approximate
coplanarity
further
facilitate
ordered
directional
growth.
Furthermore,
preventing
volatile
loss
coordinating
residual
Pb
2+
,
MSPPAI
could
stabilize
boundaries
surfaces
reduce
defects
prevent
degradation.
Utilizing
these
mechanisms,
corresponding
based
devices
achieves
25.54%
exhibits
excellent
that
maintains
93%
its
initial
even
after
1600
h
under
humid
conditions.
molecular
design
strategy
presents
novel
for
improving
PSCs.
Journal of Semiconductors,
Год журнала:
2025,
Номер
46(5), С. 051804 - 051804
Опубликована: Май 1, 2025
Abstract
Halide
perovskites
have
attracted
great
interest
as
active
layers
in
optoelectronic
devices.
Among
with
diverse
compositions,
α-FAPbI
3
is
of
utmost
importance
properties
and
a
decent
bandgap
1.48
eV.
However,
the
α-phase
suffers
an
irreversible
transition
to
photo-inactive
δ-phase,
whereas
δ-phase
usually
regarded
useless
phase
poor
properties.
Therefore,
it
commonly
accepted
that
thermodynamic
stable
δ-FAPbI
greatly
limits
application
FAPbI
.
Every
coin
has
two
sides,
although
difficult
apply
photoelectrical
layers,
possible
combine
realize
functional
applications.
Firstly,
this
review
analyzes
cause
contrasting
between
α-
,
where
stronger
electron−phonon
coupling
1D
hexagonal
restricts
its
internal
carrier
phonon
transport.
Secondly,
factors
affecting
transitions
strategies
control
are
presented.
Finally,
some
applications
combination
given
according
previous
reports.
By
large,
we
hope
introduce
from
another
perspective
give
insights
into
unique
properties,
hopefully
providing
new
for
subsequent
advances
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Abstract
The
two‐step
method
for
perovskite
solar
cells
(PSCs)
offers
a
promising
technology
scalable
manufacturing,
particularly
under
ambient
air
conditions,
due
to
its
inherent
simplicity,
high
reproducibility,
and
operational
convenience.
With
this
approach,
achieving
high‐quality
of
lead
iodide
(PbI
2
)
films
during
the
initial
stage
is
paramount
ensuring
overall
performance
stability
devices.
However,
fabrication
PbI
,
residual
boiling
point
hygroscopic
dimethyl
sulfoxide
(DMSO)
solvent
significantly
compromises
resulting
film
quality.
Here,
L‐Homoarginine
hydrochloride
(HargCl)
introduced
into
precursor
solution,
which
greatly
reduced
amount
·xDMSO
passivated
internal
defects
(PVK)
films.
By
leveraging
strategy,
inverted
entirely
in
are
successfully
prepared,
an
impressive
power
conversion
efficiency
(PCE)
25.05%
—
highest
reported
date
fully
air‐processed
PSCs.
In
addition,
these
unencapsulated
devices
maintained
96%
their
after
500
h
storage
with
20–40%
RH.
Applied Physics Letters,
Год журнала:
2025,
Номер
126(2)
Опубликована: Янв. 13, 2025
Perovskite
solar
cells
have
experienced
rapid
development
in
the
last
few
years
due
to
their
excellent
photovoltaic
properties,
and
efficiency
stability
attracted
widespread
attention.
Passivating
interfacial
defects
has
been
universally
recognized
as
an
effective
performance
enhancement
strategy
for
perovskite
(PSCs),
but
most
reported
strategies
often
fail
simultaneously
meet
requirements
of
stability.
This
paper
proposes
enhance
passivation
function
phosphine
oxide
by
fluorination.
On
one
hand,
P=O
is
used
form
coordination
bonds
with
Pb2+
perovskite.
other
strong
hydrophobicity
F
gives
moisture
can
hydrogen
bond
organic
cations
Thanks
its
chelation
defect
sites,
it
achieved
optimized
energy
level
arrangement,
suppressed
non-radiative
recombination,
operation
Consequently,
device
increased
21.6%
a
remarkable
40
mV
VOC
remained
more
than
90%
initial
after
aging
air
environment
1000
h,
improving
both
study
demonstrates
promising
functional
modification
constructing
efficient,
stable,
environmentally
friendly
PSCs.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 22, 2025
Abstract
The
ambient
printing
of
high‐performance
and
stable
perovskite
solar
cells
(PSCs)
is
crucial
for
enabling
low‐cost
energy‐efficient
industrial
fabrication.
However,
producing
high‐quality
films
via
remains
challenging
due
to
direct
exposure
air,
which
easily
induces
additional
stacking
defects
triggers
degradation
compared
fabricated
by
traditional
spin‐coating
under
inert
conditions.
Here,
a
multiple
molecular
interaction
strategy
introduced
address
this
challenge
incorporating
2‐thiazole
formamidine
hydrochloride
(TC)
additive,
effectively
suppressing
defect
formation
during
printing.
specific
interactions
between
TC
precursor
components,
i.e.,
hydrogen
bonds
coordination
interactions,
could
promote
the
crystallization
α‐phase
perovskites
reduce
cation
anion
vacancies
simultaneously
when
drying
in
air.
These
endows
ambient‐printed
with
large
crystalline
grains
eliminated
nanovoids
low
trap‐densities,
improve
charge
carrier
dynamics
prevent
decomposition
hydration
thermal/humidity
stress
long‐term
annealing/ambient
storage.
unencapsulated
PSCs
show
high
efficiency
23.72%
good
stability,
realizing
92%
95%
retention
after
672
h
annealing
at
85
°C
N
2
atmosphere
2088
storage
Abstract
Semiconductor
single‐crystal
thin
films
are
crucial
for
the
advancement
of
high‐performance
optoelectronic
devices.
Despite
significant
progress
in
fabricating
perovskite
and
organic
films,
interdisciplinary
insights
between
these
domains
remain
unexplored.
This
review
aims
to
bridge
this
gap
by
summarizing
recent
advances
fabrication
strategies
molecular
films.
Five
preparation
methods—solution‐phase
epitaxy,
solid‐phase
meniscus‐induced
crystallization,
antisolvent‐induced
space‐confined
growth—are
analyzed
with
a
focus
on
their
principles,
functional
properties,
distinct
advantages.
By
comparing
approaches
across
material
systems,
identifies
transferable
that
can
drive
development
large‐scale,
high‐quality
Furthermore,
applications
explored,
including
solar
cells,
photodetectors,
light‐emitting
devices,
transistors,
while
addressing
challenges
such
as
scalability,
defect
control,
integration.
work
highlights
importance
cross‐disciplinary
innovation
provides
an
effective
pathway
integrating
processing
advance
next
generation
film
technologies.
Energy Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 20, 2025
Scalable
deposition
of
high‐efficient
PSCs
is
crucial
for
accelerating
their
commercial
application.
However,
in
two‐step
blade
coating
process,
the
incomplete
reaction
between
organic
salts
and
predeposited
PbI
2
layer
leads
to
a
large
amount
excess
,
which
detrimental
efficiency
long‐term
stability
perovskite
films.
Phenethylammonium
iodide
(PEAI)
can
convert
residual
into
2D
perovskite,
an
effective
strategy
improving
performance
perovskite.
there
still
significant
after
treatment.
Benzamidine
hydrochloride
(PFACl)
has
been
proven
easily
react
with
lead
form
1D
significantly
reducing
iodide.
In
this
work,
it
combines
PEAI
PFACl
develop
novel
1D/2D
low‐dimensional
composite
structure.
By
using
lower
energy
synergy,
work
more
effectively
removes
iodide,
thus
achieving
process
preparation
without
additional
assistance.
small‐area
PSCs,
PFACl/PEAI
treated
increases
from
20.5%
22.71%.
Additionally,
encapsulated
devices
maintain
91%
initial
being
stored
dry
air
1440
h.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 29, 2024
Abstract
Near‐infrared
(NIR)
image
sensors
based
on
solution‐processed
thin
film
are
gaining
prominence
in
various
applications,
including
security
detection,
remote
sensing,
medical
imaging,
and
environmental
monitoring,
owing
to
superior
penetration
capabilities
of
NIR
light.
However,
the
reported
perovskite
suffer
from
limited
resolution
performance
due
poor
structural
integrity,
bioincompatibility,
constrained
response
wavelength
range
lead‐based
materials
employed.
In
this
study,
we
present
non‐toxic
quasi‐single‐crystal
(QSC)
CH(NH
2
)
SnI
3
(FASnI
films,
prepared
via
a
simple
spin‐coating
technique,
that
demonstrate
high
integrity
effective
response.
Through
series
situ
characterizations,
reveal
orderly
growth
mode
QSC‐FASnI
films
enables
more
oriented
crystal
with
reduced
trap
grain
boundaries.
Consequently,
self‐powered
photodetector
exhibited
large
detectivity
over
10
13
Jones
(780–890
nm).
Ultimately,
high‐resolution
64×64
(4096)
pixels
imaging
array,
exhibiting
photo
dark
non‐uniformity
value,
was
fabricated
thin‐film
transistors
(TFT)
backplanes,
enabling
ultraweak
light
(63
nW
cm
−2
real‐time
fingerprint
hidden
object
recognition.
This
work
pioneers
application
lead‐free
for
arrays.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Abstract
Perovskite
solar
cells
are
among
the
most
promising
candidates
for
next
generation
of
photovoltaic
technology.
However,
heterogeneous
nature
mixed
halide
perovskites
as
ionic
crystals
raises
challenges
to
their
performance
and
long‐term
stability.
Herein,
a
functional
molecule,
named
2‐amino‐4‐trifluoromethylpyridine
(2A4TP),
is
introduced
an
inhibitor
impurity
phases
in
perovskite
wet
films,
enabling
formation
optically
active
pure
phase
(α‐phase)
at
room
temperature.
Meanwhile,
reducing
aggregation
barrier
colloidal
particles
contribute
accelerate
nucleation
rate.
Ultimately,
resulting
uniform
films
afford
optimized
(0.09
cm
2
)
exhibited
champion
efficiency
24.59%
along
with
superior
thermal
operational
Finally,
30x30
modules
fabricated
this
way
delivers
impressive
16.12%
(with
aperture
area
655.2
),
demonstrating
large‐area
compatibility
strategy.
