Chemical Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Recent
advances
in
the
development
of
multiple
classes
materials
applied
to
buried
interface
engineering
for
highly
efficient
and
stable
perovskite
solar
cells,
including
organic,
inorganic,
polymeric
materials.
Adjusting
the
hole
transport
layer
(HTL)
to
optimize
its
interface
with
perovskite
is
crucial
for
minimizing
recombination,
enhancing
carrier
extraction,
and
achieving
efficient
stable
inverted
solar
cells
(PSCs).
However,
as
a
commonly
used
HTL,
self-assemble
(SAM)
of
[2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl]
phosphonic
acid
(MeO-2PACz)
tends
form
clusters
micelles
during
deposition
process,
leading
inadequate
coverage
ITO
substrate.
Here,
Co-SAM
strategy
employed
by
incorporating
4-mercaptobenzoic
(SBA)
4-trifluoromethyl
benzoic
(TBA)
additives
into
MeO-2PACz
fabricate
Co-SAM-based
HTL.
The
introduced
additive
can
interact
MeO-2PACz,
facilitating
cluster
dispersion
thereby
enabling
better
on
improved
HTL
coverage.
Moreover,
exhibits
superior
energy
level
alignment
enhance
interfacial
contact
improve
extraction
efficiency
well
promote
growth
bottom
grains.
As
result,
an
impressive
increase
power
conversion
(PCE)
from
21.34%
23.31%
achieved
in
device
based
MeO-2PACz+TBA
while
maintaining
≈90%
initial
under
continuous
operation
at
1-sun.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
Abstract
Interface
engineering
has
emerged
as
an
effective
strategy
for
optimizing
the
charge
carrier
dynamics
in
perovskite
solar
cells,
and
design
of
modulators
plays
a
crucial
role
improving
interface
effects.
Here,
halogenated
ethylamine
hydrochloride
(XEA),
such
2‐fluoroethylamine
(FEA),
2‐chloroethylamine
(CEA),
or
(EA),
is
incorporated
into
buried
between
layer
(PVK)
SnO
2
electron
transport
(ETL)
to
assist
crystal
growth,
tune
energy
level
passivate
defects.
Pre‐embedded
XEA
interacts
with
PbI
form
2D
mesophase.
The
mesophase
assists
growth
orientation
epitaxial
perovskite,
resulting
uniform
films
larger
grains
higher
densification,
effectively
reducing
defects
caused
by
excess
at
interface.
NH
3
+
cation
X
−
anion
ions
on
fill
coordinate
vacancies,
passivating
perovskite.
Meanwhile,
introduction
adjusts
match
PVK/ETL,
compensating
loss
Consequently,
FEA‐modified
devices
exhibited
power
conversion
efficiency
24.7%,
featuring
exceptionally
high
open‐circuit
voltage
1.19
V
remarkable
stability.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 10, 2025
Stability
testing
protocols
from
the
International
Summit
on
Organic
and
Hybrid
Solar
Cell
(ISOS)
are
essential
for
standardizing
studies
photothermally
operational
stability
of
perovskite
solar
cells
(PSCs).
Under
photothermal
conditions,
migration
oxygen
SnO2
layer
induces
cationic
dehydrogenation
at
A-site
perovskite,
accelerating
degradation
to
PbI2.
This
leads
formation
photoinduced
I2
Pb0
defects,
significantly
compromising
long-term
stability.
In
this
study,
ordonezite
(ZnSb2O6-x)
as
a
multifunctional
electron
transport
(ETL)
that
captures
migrating
atoms
SnO2/perovskite
interface
is
introduced,
effectively
preventing
buried
interface.
Additionally,
lattice
match
between
ZnSb2O6-x
facilitates
well-ordered
film
growth.
As
result,
PSCs
featuring
ETLs
achieved
high
power
conversion
efficiency
25.02%
retained
90.62%
their
initial
performance
after
1000
h
under
ISOS-D-2
protocol.
Furthermore,
devices
demonstrated
remarkable
thermal
stability,
maintaining
83.69%
original
800
maximum
point
tracking
85
°C,
meeting
stringent
ISOS-L-2
protocol
requirements.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
17(19), С. 27651 - 27670
Опубликована: Май 2, 2025
Currently,
the
latest
photovoltaic
technology
based
on
perovskite
solar
cells
(PSCs)
has
attracted
much
attention
due
to
low
cost,
exciting
power
conversion
efficiency
of
over
26%,
large
scalability,
and
flexibility
PSCs.
During
development
course,
optimization
electron
transport
layer
(ETL)
plays
an
important
role
in
boosting
performance
PSCs,
where
use
modification
SnO2
with
high
chemical
stability,
low-temperature
processability,
suitable
energy
band
levels
substantially
are
shown
solve
problems
poor
charge
transport,
crystallization,
inferior
stability
at
PSC
interface.
Herein,
we
dedicate
ourselves
providing
a
comprehensive
review
advanced
ETL
for
realizing
efficient
The
fundamental
properties
its
key
as
PSCs
summarized
first.
Then,
typical
preparation
methods
introduced,
including
routes
physical
routes.
Sequentially,
state-of-the-art
strategies
optimizing
quality
discussed,
such
defect
regulation,
self-assembled
monolayer
modification,
double
construction.
Finally,
shed
some
light
existing
challenges
future
research
directions
large-scale
SnO2-based
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 30, 2025
Cesium
lead
iodide
perovskite
(CsPbI3)
is
a
class
of
promising
photovoltaic
materials
while
prone
to
undergo
spontaneous
transformation
from
the
photoactive
black
phase
nonphotoactive
yellow
under
ambient
conditions,
posing
significant
challenge
long-term
applications.
Herein,
buried
interface
regulation
strategy
reported,
where
crystalline
seeds
containing
bromide
ions
are
formed
on
substrates
through
treatment
with
cesium
prior
growth
CsPbI3.
This
results
in
initial
construction
thin
CsPbI3-xBrx
layer
high
lattice
matching
at
interface,
which
enables
subsequent
highly
oriented
CsPbI3
perovskites
that
effectively
enhances
their
stability.
Furthermore,
modified
substrate
reveals
greater
wettability,
leading
accelerated
crystallization
kinetics,
reduced
defect
density,
and
favorable
interfacial
charge
transfer.
Consequently,
corresponding
device
exhibits
simultaneous
promotion
both
photoelectric
performance
operational