Prebedded Sacrificing Layer for Developing Strain Released and Phase Pure CsPbBr3 Perovskite Solar Cells
ACS Materials Letters,
Год журнала:
2025,
Номер
unknown, С. 692 - 698
Опубликована: Янв. 23, 2025
Язык: Английский
Reducing the Vibration of Carbazole‐Based Self‐Assembled Monolayers for High‐Performance Inverted Perovskite Solar Cells Through the Deuteration Strategy
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 4, 2025
Carbazole-based
self-assembled
small
molecules
are
promising
and
commonly
used
hole
transport
layers
(HTLs)
materials
for
inverted
perovskite
solar
cells
(IPSCs).
Here,
a
novel
perdeuterated
carbazole-based
SAM
named
4PACzd8
is
obtained.
Owing
to
the
deuteration
strategy,
which
causes
reduction
in
molecular
vibration
frequency,
modulates
crystallization
atop
suppresses
interfacial
non-radiative
recombination.
Furthermore,
it
noteworthy
that
demonstrates
heightened
UV
absorption
properties,
thereby
offering
enhanced
protection
underlying
film
from
degradation
resulting
exposure.
Compared
with
non-deuterated
analog
4PACz,
champion
device
employing
showed
higher
power
conversion
efficiency
(PCE)
of
24.87%
excellent
stability.
The
impressive
PCE
by
far
one
highest
values
IPSCs
simple
SAMs
as
HTLs.
Язык: Английский
Nano‐Space Confinement Crystal Growth Boosted Hole Extraction in Carbon‐Based CsPbI3 Perovskite Solar Cells
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 15, 2024
Abstract
Carbon‐based
CsPbI
3
perovskite
solar
cells
(C‐PSCs)
have
shown
a
great
promising
due
to
its
excellent
chemical
stability.
However,
the
low
hole
selectivity
and
inefficient
charge
separation
at
perovskite/carbon
interface
suppress
their
photovoltaic
performance.
Introducing
low‐dimensional
(LD)
structure
is
anticipated
address
issue
but
randomly
grown
LD
crystals
would
considerably
increase
surface
roughness,
which
not
only
weakens
contact
for
inhibiting
extraction
also
increases
transporting
length
in
perovskite.
Herein,
COMSOL
Multiphysics
simulation
first
explored
establish
relation
of
with
device
performance,
suggests
that
p
‐type
thin
capping
layer
high
coverage
favorable
To
verify
results,
nano‐space
confinement
(NSC)
strategy
proposed
inhibit
vertical
growth
2D
Cs
2
PbI
Cl
plates
promoting
in‐plane
growth,
during
polymethyl
methacrylate
(PMMA)
pre‐covered
on
nuclear
before
growth.
Consequently,
well‐covered
deposited
n
layer,
significantly
enhances
efficiency
C‐PSCs
18.23%
an
ultra‐high
V
OC
1.161
V.
Язык: Английский
Crown Ether-Modified 1D/3D Heterojunction for Efficient and Stable Carbon-Based CsPbI3 Perovskite Solar Cells
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 2, 2024
Interface
engineering
strategies
passivate
defects
on
the
polycrystalline
perovskite
film
surface
and
improve
stability
of
corresponding
solar
cells
(PSCs).
However,
a
single
interface
step
can
result
in
restricted
benefits
various
occasions.
Therefore,
an
appropriate
additional
modification
be
necessary
to
synergistically
device
performance.
In
this
study,
two-step
strategy
is
developed.
Initially,
CsPbI3
modified
by
choline
iodide
(ChI)
construct
1D
ChPbI3/3D
heterojunction,
then
with
use
crown
ether
applied.
The
further
eliminate
unpassivated
after
heterojunction
construction.
Benefiting
from
inhibited
interfacial
recombination,
resultant
carbon-electrode-based
PSCs
(C-PSCs)
deliver
champion
efficiency
18.78%,
representing
one
highest
levels
field.
Besides,
against
moisture,
heat,
light
stress
due
enhanced
hydrophobicity
suppressed
ion
migration.
Язык: Английский