Space-Charge-Limited Current Measurements: A Problematic Technique for Metal Halide Perovskites
The Journal of Physical Chemistry Letters,
Год журнала:
2024,
Номер
unknown, С. 10001 - 10008
Опубликована: Сен. 24, 2024
Space-charge-limited
current
(SCLC)
measurements
play
a
crucial
role
in
the
electrical
characterization
of
semiconductors,
particularly
for
metal
halide
perovskites.
Accurate
reporting
and
analysis
SCLC
are
essential
gaining
meaningful
insights
into
charge
transport
defect
density
these
systems.
Unfortunately,
performing
on
perovskites
is
complicated
by
their
mixed
electronic-ionic
conductivity.
This
complexity
led
to
data
often
being
incorrectly
analyzed
using
simplified
models
unsuitable
materials
reported
without
information
about
how
were
performed.
In
light
recently
published
data,
common
challenges
perovskite
addressed,
solutions
discussed
this
paper.
The
applicability
often-used
analytical
models,
overlooked
issues
related
ionic-electronic
conductivity
perovskites,
creating
single-carrier
devices
investigated
drift-diffusion
simulations.
Finally,
guidelines
more
accurate
improved
provided.
Язык: Английский
Solvent‐Tailored Carbon Paste for Effective Carbon‐Based Perovskite Solar Cells
Solar RRL,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 11, 2025
Printable
planar
carbon
electrodes
present
a
cost‐effective
and
highly
promising
alternative
to
thermally
evaporated
metals,
serving
as
the
rear
contact
for
stable
perovskite
solar
cells
(PSCs).
However,
power
conversion
efficiencies
(PCEs)
of
carbon‐based
PSCs
(C‐PSCs)
are
notably
lower
compared
those
state‐of‐the‐art
PSCs.
The
inferior
between
electrode
underlying
layer
contributes
performance
loss.
Here,
we
developed
scalable
doctor‐bladed
by
simultaneously
incorporating
4
wt%
black
utilizing
toluene
(TLE)
solvent
engineering
commercial
paste,
resulting
in
improved
flexibility
conductivity
while
yielding
reduction
resistivity
50%
measured
via
4‐point
probe.
Consequently,
sheet
can
efficiently
adhere
hole‐transporting
simple
pressing
technique,
significantly
boosting
charge
transfer
across
interface.
TLE
device
achieves
champion
PCE
15.77%
with
an
ultralow
hysteresis
index
(HI)
0.027,
solvent‐free
which
has
HI
0.176.
exhibits
long‐term
stability
when
subjected
dark
conditions
40‐50%
RH,
sustaining
82%
its
initial
efficiency
after
24
days
without
encapsulation
minimal
declines
J
sc
V
oc
.
Язык: Английский
Challenges and perspectives for the perovskite module research
Runda Li,
Libing Yao,
Jingyi Sun
и другие.
Chem,
Год журнала:
2025,
Номер
unknown, С. 102542 - 102542
Опубликована: Апрель 1, 2025
Язык: Английский
Rational Interface Design Toward Mechanically Durable Flexible Perovskite Solar Cells
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 8, 2025
Abstract
Owing
to
distinctive
properties
of
lightweight,
thin,
high
energy‐to‐mass
ratio
and
bendability,
flexible
perovskite
solar
cells
(f‐PSCs)
are
expected
extend
the
application
scenarios
photovoltaics,
while
defective
fragile
interface
within
devices
seriously
restricted
their
mechanical
stability
practical
deployment.
Herein,
origin
flexibility
lattice
is
explored
historic
progress
f‐PSCs
briefly
summarized.
Then,
fracture
mechanics
relevant
characterizations
introduced.
Recent
strategies
boost
durability
systematically
reviewed
from
aspect
design,
including
regulation
crystallization
with
optimum
crystallinity
suppressed
strain,
construction
grain
boundary
patches
eliminate
difference
between
boundaries,
facilitating
energy
dissipation
adjacent
elastic
layers,
strengthening
interfacial
contact
improved
resistance.
In
end,
perspectives
in
further
development
toward
efficient
mechanically
robust
provided.
Язык: Английский
Simplifying contact-layer design for high-throughput printing of flexible perovskite photovoltaics
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(19), С. 7147 - 7154
Опубликована: Янв. 1, 2024
SAM
enabled
and
simplified
fully
printed
carbon-based
flexible
perovskite
modules.
Язык: Английский