Coatings,
Год журнала:
2024,
Номер
15(1), С. 15 - 15
Опубликована: Дек. 27, 2024
Flexible
perovskite
solar
cells
(F-PSCs)
hold
great
potential
for
lightweight
photovoltaic
applications
due
to
their
flexibility,
bending
compatibility,
and
low
manufacturing
cost.
However,
tin
oxide
(SnO2),
as
a
common
electron
transport
layer
(ETL)
used
in
F-PSCs,
typically
suffers
from
high-density
surface
defects
that
hinder
the
charge
extraction
efficiency
deteriorate
crystallization
quality
of
upper
film.
Additionally,
poor
buried
interface
intensifies
lattice
extrusion
strain
residue
across
films,
further
aggravating
mechanical
brittleness
devices.
To
address
issues,
we
developed
molecular
bridging
strategy
by
introducing
2,2′-oxybis(ethylenediamine)
dihydrochloride
(DO)
at
perovskite/SnO2
interface.
The
diammonium
groups
spacer
ligands
can
achieve
bidentate
anchoring
on
SnO2
cooperating
with
oxygen
atom
alkyl
chain
passivate
charged
tailored
properties
also
endow
optimized
films
significantly
alleviate
tensile
strengthen
perovskite’s
pliability.
As
result,
F-PSCs
achieved
champion
23.50%,
outperforming
value
21.87%
control
device.
Furthermore,
devices
exhibited
excellent
robustness,
maintaining
90%
initial
PCE
after
6000
cycles
radius
4
mm.
This
work
presents
reliable
synergistic
optimization
contact
interface,
contributing
development
efficient
stable
F-PSCs.
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.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 28, 2025
Abstract
Flexible
perovskite
solar
cells
(F‐PSCs)
have
emerged
as
a
promising
area
of
research
in
photovoltaics,
achieving
power
conversion
efficiencies
(PCEs)
surpassing
26%.
Compared
to
rigid
PSCs,
the
selection
deposition
techniques
and
materials
optimization,
among
other
factors,
significantly
influence
efficiency
long‐term
stability
F‐PSCs.
This
review
comprehensively
analyzes
state‐of‐the‐art
F‐PSC
fabrication
methods,
including
spin
coating,
blade
slot‐die
inkjet
printing,
screen
vacuum
evaporation.
Additionally,
it
evaluates
advanced
strategies
for
refining
charge
transport
materials,
such
doping,
additive
engineering,
interfacial
modification.
Critical
challenges
unique
F‐PSCs
are
also
discussed,
their
integration
into
tandem
cells,
encapsulation
reliability,
compatibility
with
flexible
substrates.
Ultimately,
this
offers
forward‐looking
perspective
on
commercialization,
proposing
actionable
solutions
address
technical
bottlenecks
facilitate
transition
from
lab‐scale
innovation
industrial
application.
Coatings,
Год журнала:
2024,
Номер
15(1), С. 15 - 15
Опубликована: Дек. 27, 2024
Flexible
perovskite
solar
cells
(F-PSCs)
hold
great
potential
for
lightweight
photovoltaic
applications
due
to
their
flexibility,
bending
compatibility,
and
low
manufacturing
cost.
However,
tin
oxide
(SnO2),
as
a
common
electron
transport
layer
(ETL)
used
in
F-PSCs,
typically
suffers
from
high-density
surface
defects
that
hinder
the
charge
extraction
efficiency
deteriorate
crystallization
quality
of
upper
film.
Additionally,
poor
buried
interface
intensifies
lattice
extrusion
strain
residue
across
films,
further
aggravating
mechanical
brittleness
devices.
To
address
issues,
we
developed
molecular
bridging
strategy
by
introducing
2,2′-oxybis(ethylenediamine)
dihydrochloride
(DO)
at
perovskite/SnO2
interface.
The
diammonium
groups
spacer
ligands
can
achieve
bidentate
anchoring
on
SnO2
cooperating
with
oxygen
atom
alkyl
chain
passivate
charged
tailored
properties
also
endow
optimized
films
significantly
alleviate
tensile
strengthen
perovskite’s
pliability.
As
result,
F-PSCs
achieved
champion
23.50%,
outperforming
value
21.87%
control
device.
Furthermore,
devices
exhibited
excellent
robustness,
maintaining
90%
initial
PCE
after
6000
cycles
radius
4
mm.
This
work
presents
reliable
synergistic
optimization
contact
interface,
contributing
development
efficient
stable
F-PSCs.
