Self-assembled
monolayers
(SAMs)
play
a
critical
role
in
modifying
the
buried
interface
of
perovskite
solar
cells
(PVSCs)
by
modulating
crystallization
dynamics
perovskites
and
adjusting
energy
level
alignment
between
layer
electrode.
The
integration
p-type
SAMs
has
driven
power
conversion
efficiency
(PCE)
inverted
p-i-n
structured
PVSCs
to
world
record
26.7%.
However,
with
traditional
n-i-p
structures,
n-type
have
not
yet
achieved
comparable
breakthroughs.
Therefore,
unlock
full
potential
SAMs,
this
review
provides
comprehensive
summary
their
molecular
deposition
methods,
passivation
mechanisms.
Recent
advances
various
including
fullerene-based,
naphthalene
imide-based,
benzene-based
other
structures
been
discussed
detail.
Finally,
future
research
directions
associated
challenges
are
outlined
guide
efforts
toward
realizing
PVSCs.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(32)
Опубликована: Май 16, 2024
Abstract
The
passivation
of
the
defects
derived
from
rapid‐crystallization
with
electron‐donating
molecules
is
always
a
prerequisite
to
obtain
desirable
perovskite
films
for
efficient
and
stable
solar
cells,
thus,
in‐depth
understanding
on
correlations
between
molecular
structure
capacity
great
importance
screening
passivators.
Here,
we
introduce
double‐ended
amide
molecule
into
precursor
solution
modulate
crystallization
process
passivate
defects.
By
regulating
intermediate
bridging
skeletons
alkyl,
alkenyl
benzene
groups,
results
show
strength
highly
depends
spin‐state
electronic
that
serves
as
an
intrinsic
descriptor
determine
intramolecular
charge
distribution
by
controlling
orbital
electron
transfer
donor
segment
acceptor
segment.
Upon
careful
optimization,
benzene‐bridged
demonstrates
superior
efficacy
improving
film
quality.
As
physical
proof‐of‐concept,
carbon‐based,
all‐inorganic
CsPbI
2
Br
cell
delivers
significantly
increased
efficiency
15.51
%
remarkably
improved
stability.
Based
same
principle,
champion
24.20
further
obtained
inverted
(Cs
0.05
MA
FA
0.9
)Pb(I
0.93
0.07
)
3
cell.
These
findings
provide
new
fundamental
insights
influence
modulation
effective
cells.
ACS Applied Electronic Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 22, 2025
Over
the
past
decade,
organic
solar
cells
(OSCs)
have
made
noticeable
progress
in
photovoltaic
performance
thanks
to
emergence
of
electron
acceptors
capable
intramolecular
charge
transfer,
namely,
nonfullerene
small
molecules.
OSCs
continue
gain
momentum
by
employing
self-assembled
monolayers
(SAMs)
as
transport
layers,
particularly
those
involving
conjugated
system
their
functional
groups
and/or
spacers.
This
review
provides
an
overview
SAMs,
covering
molecular
designs,
fabrication
methods,
and
various
functions
OSCs.
Additionally,
it
highlights
currents
issues
surrounding
along
with
efforts
address
them
future
perspectives.
Journal of Materials Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Compositional
and
interfacial
engineering
for
improved
light
stability
of
flexible
wide-bandgap
perovskite
solar
cells
a
highly
efficient
all-perovskite
tandem
device.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 8, 2025
Self-assembled
monolayers
(SAMs)
with
excellent
hole
conduction
capabilities
significantly
improve
the
performance
of
inverted
perovskite
solar
cells
(PSCs).
However,
amphiphilic
nature
SAMs
causes
spontaneous
formation
spherical
micelles
in
solution,
limiting
their
surface
coverage
and
uniformity
on
indium
tin
oxide
(ITO)
substrates.
Furthermore,
distribution
directly
affects
morphology
films
charges
transfer
properties
at
buried
interface.
This
study
employs
a
cosolvent
strategy
combining
n-butanol
dimethyl
sulfoxide
to
uniform
spreading
ITO.
The
synergistic
interaction
between
solvent
molecules
smooths
[2-(3,6-dimethoxy-9H-carbazol-9-yl)
ethyl]
phosphonic
acid
(MeO-2PACz)
enhances
its
coverage.
based
MeO-2PACz
has
characteristics
concentrated
potential
high
work
function,
exhibiting
enhanced
P-type
behavior.
Additionally,
cosolvent-treated
provide
nucleation
sites
for
crystallization
perovskite,
effectively
eliminating
void
defects
interface
improving
crystallinity
films.
Consequently,
optimized
device
achieves
power
conversion
efficiency
(PCE)
25.51%
fill
factor
84.38%.
ordered
stability
PSCs,
encapsulated
retaining
92.63%
initial
PCE
after
operating
1500
h
under
simulated
AM
1.5G
standard
irradiation
air
65
°C.
Self-assembled
monolayers
(SAMs)
play
a
critical
role
in
modifying
the
buried
interface
of
perovskite
solar
cells
(PVSCs)
by
modulating
crystallization
dynamics
perovskites
and
adjusting
energy
level
alignment
between
layer
electrode.
The
integration
p-type
SAMs
has
driven
power
conversion
efficiency
(PCE)
inverted
p-i-n
structured
PVSCs
to
world
record
26.7%.
However,
with
traditional
n-i-p
structures,
n-type
have
not
yet
achieved
comparable
breakthroughs.
Therefore,
unlock
full
potential
SAMs,
this
review
provides
comprehensive
summary
their
molecular
deposition
methods,
passivation
mechanisms.
Recent
advances
various
including
fullerene-based,
naphthalene
imide-based,
benzene-based
other
structures
been
discussed
detail.
Finally,
future
research
directions
associated
challenges
are
outlined
guide
efforts
toward
realizing
PVSCs.
